Java programming examples with source code

Basic hello world program in java – This basic hello world application can help you grasp the fundamental or elementary ideas in Java as a novice. Create a java hello world application with output. The expression “Hello World” is shown on the screen in this Java application.

Write a java program to print a number from the user – Create a Java application that prints a user-supplied number. Print the value acquired from the user in the Java application. The first step in learning how to print a number in the Java programming language is to do so.

Java program to add two numbers taking input from user – This is a Java application that will accept input from the user and execute addition of two integers in Java. In this program, you will learn how to create a java application that adds two integers.

Leap year or not program in java using if-else – Using if-else, create a java application that determines if the year is leap year or not. This Java-based application will determine whether or not the year is a leap year. This package includes a series of beginner-friendly Java applications.

Swapping of two numbers in java with temporary variable – Beginners can use a temporary variable to swap two integers in Java to grasp the notion of a swapping program. In the Java programming language, the temp method is used to swap integers in a program.

Odd or even program in java using a mod operator – Using the mod operator, write a Java application to output Odd or Even. Odd or even in the java programming language for beginners. This is a basic collection of Java applications to check the number for beginners.

Vowel or consonant in java using if else – Using if-else in Java, you may choose whether to use a vowel or a consonant. You may learn how to determine if a letter is a vowel or a consonant in the Java computer language. Vowels are represented by the letters a, e, I, o, and u. Consonants make up the rest of the letters.

Java program to find largest of three numbers using nested if – Using nested if in Java, get the biggest of three integers. The largest number program in java programming for beginners compares numbers to find the greatest number in a given number.

Write a program to print first ten natural numbers in java – In Java, write a program to output the first 10 natural integers. This application will teach you how to create a java program to sum natural numbers for beginners. The sum of natural numbers in the Java programming language.

Write a program to find factorial of a number using for loop in java – In Java, write a program to find the factorial of an integer using the for loop. In this program, you will learn how to use the for loop in Java to build a program that prints factorial numbers or does not. Program a factorial number or not in the Java programming language.

Palindrome string program in java using scanner – Using a scanner, create a palindrome string application in Java. Learn how to use letters to build a java program that prints palindrome or not. You may construct a palindrome or not in the Java programming language.

Program to check whether the number is prime or not in java – In Java, you may verify whether a number is prime or not. You may select whether to program in prime or non-prime mode in the Java programming language.

Java program to find Armstrong number using while loop – While loop is used in a Java application to discover the Armstrong number. Check whether the number is an armstrong number or not in the Java programming language. This program will tell you if the number is an Armstrong number or not.

Java program for a calculator using switch case – A Java application for a switch case calculator. Create a basic calculator software using Java programming. This is an easy-to-use calculator. Basic operations will be done, such as add, sub, mul, and div.

Java program to calculate percentage and average – Calculate percentages and averages with a Java application. Percentage and Average is a Java software that may help novices grasp the mathematical idea and how it works in the Java programming language.

Write a java program to print multiplication table using for loop – Create a java application that uses a for loop to print a multiplication table. Print the maths tables in the Java program. This software is considerably more amazing and increases programming concepts as a newbie in the Java programming language.

Print the sum of the natural numbers program in java using for loop – Using the for loop, print the total of the natural numbers in Java. Find the sum of n numbers in a Java application. It will print the addition of n numbers as well as the addition of a user-entered number in the java programming language for novices.

Write a java program to convert temperature from Fahrenheit to celsius degree – To compute degree, write a java application to convert temperature from fahrenheit to celsius. Temperature is measured on the Celsius scale. It’s a metric for determining how hot or cold something is. The abbreviation °C is widely used.

Write a java program to convert temperature from Celsius to Fahrenheit – Convert temperature from Celsius to Fahrenheit with a Java application. Temperature is measured on the Celsius scale. It’s a metric for determining how hot or cold something is. The abbreviation °C is widely used.

Java program to find HCF and LCM of two numbers – HCF and LCM of two integers are calculated using a Java application. Find HCF and LCM in the java application; the HCF and LCM values will be printed in the output of the user-entered number.

Java program to print the area of circumference of a circle – A Java application to print the circumference of a circle’s area. This Java application will output a circle’s area circumference. In geometry, the diameter of a circle is the distance around it. That is, the circumference equals the diameter of the circle.

Write a java program to print the length and perimeter of a rectangle – Write a Java application to output a rectangle’s length and perimeter. Measure the length and width in a Java application. The region and perimeter will be printed in the output of the Java application. The input’s length and breadth will be displayed in the output as a field and perimeter.

Java program to print ASCII value of all alphabets – All alphabets’ ascii values are printed using a Java application. Print the Ascii value using the Java programming language. Each letter in the programming language has an ASCII value to output.

Java program to print decimal number to binary – To convert a decimal number to binary, use a Java application. Convert a decimal value to a binary number in Java. Decimals are one of the types of numbers because a decimal point separates the whole number from the fractional component.

Java program to print decimal to octal conversion – A Java application that converts decimal to octal. Convert decimal to octal in a Java application. Because a decimal point separates the entire number from the fractional variable, decimals are one of the kinds of numbers.

Java program to print hexadecimal to decimal number conversion – A Java application that converts hexadecimal to decimal numbers. A program in java that converts hexadecimal to decimal values, as well as an explanation of how the conversion function works in the java programming language, is provided for beginners.

Octal to hexadecimal conversion program in java – Java application to convert octal to hexadecimal. Convert an octal number to a hexadecimal number in a Java application. This isn’t an ordinary octal to hexadecimal converter.

Java program to conversion hexadecimal to decimal number – Convert hexadecimal to decimal numbers with a Java application. Convert hexadecimal to decimal numbers with Java program. Using or referring to a number notation method with a basis of 16 rather than 10.

Java program to print the upper case to lower case alphabets – Java software that converts uppercase to lowercase alphabets. Convert uppercase to lowercase characters with Java program. This application can convert or shift uppercase to lowercase in Java programs.

Java program to print two multiply binary numbers with solution – A Java application that output two binary integers multiplied with a solution. In digital electronics and mathematics, a binary number is a number represented in the base-2 numeric system, often known as the binary numeral system.

Java program to find the sum of digits of a number using recursion function – Using the recursion function in Java, determine the sum of a number’s digits. The source code for a Java application that finds the sum of a number’s digits via recursion. You can use any decimal number as an input.

Java program to swap two numbers using bitwise xor operator – Using the bitwise xor operator, a Java application swaps two integers. The source code for a Java application that swaps the contents of two integers using the Bitwise XOR technique. Choose any two integer integers as input.

Java program to find product of two numbers using recursive function – A Java application that uses the recursive function to determine the product of two integers. This is a Java application that finds the product of two integers via recursion. Enter two integer integers as input.

Write a java program to find the reverse of a given number using recursion – Create a Java program that uses recursion to determine the inverse of a given integer. This is a Java application that finds the inverse of an integer via recursion. You can use any integer number as an input. After then, the number of digits in the provided input is tallied.

Write a java program to accept two numbers and check which is same or not – Write a Java program that receive two integers and determine if they are the same. This Java application compares two integers to check if they’re equal. Enter two integer integers as input. The equal to operator is then used to match both inputs.

Java program to increment by 1 all the digits of a given integer – All the digits of a particular integer are incremented by one in a Java application. This is a Java application that increases the digits of an integer by one. You can use any integer as an input. Then, using various operations such as modulus and division, we extract each digit and increase it by one.

Java program to print the number positions in list of digits – Print the number locations in a list of digits with a Java application. This is a Java application that extracts digits from a number. You can use any integer as an input.

Write a java program to convert numbers into years, weeks and days – Convert numbers to years, weeks, and days using a Java application. A specified number of days is converted to years, weeks, and days using this Java application. Choose any integer number as an input. Then we divide the input by 365 to get the number of years.

Write a java program to print the ip address – To print the IP address, write a Java application. This is a Java application that shows the IP address of the system. The InetAddress class represents an Internet Protocol address.

Java program to check whether entered character is uppercase or lowercase – Checks if a character is uppercase or lowercase using a Java application. This Java application checks to see if the provided Alphabets are Uppercase, Lowercase, or Digits. As input, any character can be utilized.

Write a program illustrate use of various boolean operators in java – Create a Java application that demonstrates the use of several boolean operators. A Java application that shows how to utilise different Boolean operators. Choose any two boolean values as input. Then we utilize boolean bitwise operations like AND, OR, XOR, and NOT to achieve the required result.

Java program to print the number entered by the user using for loop – Using the for loop in Java, print the number entered by the user. This is a Java application that displays numbers from 1 to 10 using the For Loop. To assign a variable to 1 and increase it by 1 each time until we reach 10, we use a For Loop.

Write a java program to check whether the given number is divisible by 5 – Write a Java program to determine if the provided integer is divisible by five. This Java application will verify if a given number is divisible by 5 by taking any integer as an input. The modulus operation is used to determine if a given number is divisible by five.

Write a java program to take a number and return list of its digits – Create a Java application that accepts a number and returns a list of its digits. A Java application can take a number and return a list of its digits. A Java application can take a number and return a list of its digits. You can use any integer number as an input.

Java program to print the two digits of the year – A Java application that print the year’s two digits. A Java application that extracts the final two digits of the year. You can use any integer as an input. Using modulus and division operations, the final two digits of the given integer are retrieved as output.

Write a java program for atm machine – Create a java application to control the ATM machine. This is a Java application that demonstrates how to display a transaction from an ATM. The user will choose one of the available options as input. Multiple switch instances have been provided for various processes such as withdraw, deposit, and check balance.

Java program to find the second biggest and smallest number in the array – Find the second and lowest numbers in an array with a Java application. With this Java program, you can find the second largest and smallest elements in an array. The array’s size should be entered first, followed by all of the array’s items. Using the for loop and the temp variable, we now sort the array in ascending order.

Write a java program to sort the names in ascending order – To sort the names in ascending order, write a Java application. This is a Java application for sorting names alphabetically. The array’s size should be entered first, followed by all of the names in the array.

Write a java program to increment every element of the array by one – Create a Java program that increases the value of each entry in the array by one. This is a Java application that outputs the incremented array and adds one to each of its elements. The array’s size should be entered first, followed by all of the array’s items.

Java program for banking ticket system using if-else statement – If-else statement is used in a Java application for a banking ticket system. When a customer’s number is called in a bank’s ticketing system, they are given a ticket and serviced. Consider the following scenario: five customers each purchase a ticket from our system.

Java program to find which department has highest placement program – A simple Java application that determines which department has the most successful placement program. VSB College would like to recognize the department with the most placements for the current academic year.

Write a java program to find my lucky number or not – Write a Java program to determine whether or not I have a fortunate number. Thilagar planned to give his automobile a lucky four-digit number. For him, the numbers 3,5 and 7 are lucky. Assist him in finding a number that has a total of three, five, or seven.

Credit score program in java for shop – For a shop, create a Java credit score application. Amazon is an online retailer that rewards its loyal customers with gift cards. The voucher may be redeemed for a set number of shopping credit points. Each credit point is sent one by one by the user.

Java program to count the number of pencils for student – A Java application to count how many pencils a pupil has. At school and at home, Thilagar writes with pencils. While he was in first grade, his parents bought her one pencil.

Java program to find numerology number – To find a numerology number, use a Java application. Ram has developed a new interest in numerology and has began to notice the numbers that pop up in his daily life. Create a plan to aid him. The program should receive the user’s input and display the numbers one by one, separated by a single space.

Java program to calculate uber cost and discount rate – Uber cost and discount rate are calculated using a Java application. Uber is one of the city’s most well-known taxi services. Uber’s owner plans to provide its customers a substantial discount. The discount is computed based on the trip distance.

Java program to calculate land price with land area – A Java application that calculates the price of land based on its area. They provide low-cost self-contained house plans, flats, and private villas. Thilagar Real Estate’s management wants to provide a considerable discount to its consumers.

Java program to calculation the air conditioner capacity for invertor and non invertor – For inverter and non-inverter air conditioners, a Java application to calculate capacity is available. The Manager of Vasanth & Co showroom wants to know the stock of inverter and non-inverter air conditioners in order to place bulk orders.

Java program to kindergarten school kids – A Java application for kindergarten students. Kindergarten pupils are instructed to repeat a word five times. They must, for example, say “running” if the word is “running.” Write software that accepts the user’s string (word) as input as well as the character’s X and Y positions.

Java program to calculate cubic capacity cc in bikes – A Java application for calculating the cubic capacity of bicycles (cc). The unit of measurement is the cubic capacity of a motorcycle’s engine. The cubic capacity of a vehicle, abbreviated as “cc,” normally varies from 50cc to 1500cc.

Java program to find the odd or even in the box challenge – Find the odd or even in the box challenge with a Java application. The input numbers must be greater than zero. Otherwise, leave with the message “is not a valid input.” If the sum is even, print “is even it’s a valid box.” Print “is odd, this box is invalid” if the sum is odd.

Java program to create a login page with username and password – Create a login page with username and password using a Java application. Make the necessary preparations for the development of an application. Decide whether or not to build a login page. Users must first register and login before using the application.

Java code for car parking management system – For a car parking management system, write Java code. This software can assist you in locating a free parking spot for automobiles. We can quickly determine which parking spaces are available in a parking lot by utilising this software.

Java program to find the middle element of the string – A Java application to find the string’s middle element. This program will print the input’s centre element. Write a Java application that takes a user-supplied string and extracts the middle characters in the string’s centre from the input string before returning it as a string output.

Java program to find the cubes of an n natural numbers – The cubes of a n natural integers are found using an java software. We’ll build two Java programs that use the For Loop and While Loop to determine the cube of numbers up to a specific integer in this lesson. The software will discover the cube of the first N integers using the for and while loops.

Java program to print weekdays using a switch statement – A switch statement is used in a Java application to print weekdays. This Java program can help you figure out the weekdays’ order. In the program below, the user is asked to provide a valid week number.

Java program to solve quadratic equation using if-else – If-else logic is used in a Java application to solve quadratic equations. A quadratic equation is a second-degree equation that has at least one squared element in it. The usual form is ax2 + bx + c = 0, where a, b, and c are numerical coefficients and x is an unknown variable.

Java program calculation to fill the bucket with the water mug – Calculation in Java to fill the bucket with the water cup. A cup with a capacity of y millilitres should be filled into a bucket with a capacity of x litres. The bucket will be filled with a minimum of 6 cups if x=50 and y=5.

Method Overloading in Java to Find Arithmetic Sum of 2 or 3 or 4 Variables by Passing Argument – By passing an argument to a method overloaded in Java, you may find the arithmetic sum of two, three, or four variables. This is a Java application that finds the arithmetic sum of two, three, or four variables using method overloading. Method overloading is the practice of having two or more methods in the same class with the same name but different argument declarations.

Write a java program to print the nested methods to perform mathematical operations – Create a Java application that prints nested methods for doing mathematical calculations. This is a Java application that shows how to nest methods. When a Java method calls another method in the same class, this is known as method nesting.

Write a program to concatenate two string in java – In Java, create a program that concatenates two strings. String concatenation using a Java application. Choose any two strings as input. We’ve developed a function that takes the two provided strings and concatenates them with the concatenation operator before returning the appropriate output to the main function.

How to print semicolon in java program without using it – How to output a semicolon without using it in a Java application. A Java application will output a semicolon even if no semicolon is used anywhere in the code. An integer variable is given the value of fifty-nine.

Write a java program to find the largest number in an array – To determine the biggest number in an array, write a Java application. A Java application may be used to find the biggest two integers in an array. The array’s size should be entered first, followed by all of the array’s items. We sort the array in decreasing order using double for loops, providing the first two elements as output.

Write a program to find second largest number in an array in java – In Java, create a program to discover the second biggest number in an array. Using an Array to Find the Second Largest and Smallest Elements The array’s size should be entered first, followed by all of the array’s items. Using the for loop and the temp variable, we now sort the array in ascending order.

Write a java program to find the odd or even number in the array – Write a Java program to determine whether the array contains an odd or even number. A Java program divides an array’s even and odd elements into two arrays. The array’s size should be entered first, followed by all of the array’s items.

Write a java program to add element in user-specified position using array – Write a Java application that uses an array to add an element to a user-specified location. A Java application that adds an element to a particular place in an Array. The array’s size should be entered first, followed by all of the array’s items.

Write a java program to delete an element from an array list at the specified index – Write a Java program to remove an element from an array list at a certain index. Using a Java application, remove the supplied integer from an array. The array’s size should be entered first, followed by all of the array’s items. Now write in the element that you want to remove.

Write a java program to arrange strings in alphabetical order – Create a Java application that sorts strings alphabetically. Using a Java application to sort names in alphabetical order. The array’s size should be entered first, followed by all of the names in the array.

Write a java program to split an array in a specific position – Create a Java program that splits an array at a specified point. Using a Java application to split an array from a specified position. The array’s size should be entered first, followed by all of the array’s items. Now enter in the starting point for your division.

Write a array program to calculate average and sum in java – In Java, create an array program to calculate the average and sum. In Java, find the sum and average of an array. The array’s size should be entered first, followed by all of the array’s items.

Write a program to calculate electricity bill in java – In Java, create a software to compute a power bill. Multiply the device’s wattage by the number of hours per day it is utilized. Multiply by a factor of 1000. Subtract the cost of your kWh from the total.

Find out duplicate number between 1 to n numbers in java – In Java, find duplicate numbers between 1 and n integers. In Java, we may use this application to discover duplicate or repeated numbers. To identify duplicate components, two loops might be utilized.  The outer loop loops across the array from 0 to the length of the array. The outer loop will choose the element. Using the inner loop, the selected element will be compared to the remainder of the array’s elements.

Program in java to print the pie value(pi) – A Java application to output the pie value (pi). Mathematicians use the lowercase Greek letter pi, which is frequently written pi, to indicate the circumference-to-diameter ratio of a circle. It comes from the first letter of the Greek word perimeters, which meaning circumference. In English, it’s pronounced “pie.”

Java program to print the element using calling methods in the same class – Using calling methods in the same class, a Java program is used to print the element. This program demonstrates how to invoke a method from within a single class. You must first build the ‘Main’ class, from which you will call the main() function in this program.

Java program to change the element position in right direction using single dimension array – Using a single dimension array, a Java program can alter the element location in the right way. A one-dimensional array in the form of a linear array. To access its elements, a single subscript is utilized, which might specify a row or column index.

Write a single dimension array in a java program to modify the element located in the leftwards direction – To change the element situated in the leftwards direction, write a java application with a single dimension array. A linear array is a one-dimensional array with one dimension. A single subscript, which might indicate a row or column index, is used to retrieve its contents.

Write a java program to delete or erase the element in the array in a exact location – Create a Java application that deletes or erases an element from an array at a certain position. In Java, we may remove an array element using this program. We start iterating at the point where the piece will be deleted.

Transpose matrix java program in java in a single matrix – Java application to transpose a matrix into a single matrix. A matrix is a rectangular array of integers organized in columns and rows. The numbers are known as the matrix’s entries or elements. Matrixes are used in engineering, physics, economics, biology, and statistics, as well as many mathematical areas.

Java program to pay and calculate mortgage, loan and insurance payment – Pay and calculate mortgage, loan, and insurance payments with a Java application. The mechanism through which you repay your home loan is known as your mortgage payment. This is generally a once-a-month payment that aids in the progressive repayment of your mortgage. Payments for your lender’s interest, insurance, and taxes will also be included.

Java program to find the length of the array and string a single program – A simple Java program to find the length of an array and a single program to get the length of a string. We can compute array and string in the array in Java with this application. The maximum number of elements that an array may store is referred to as the array length in Java.

Fibonacci series program in java using recursion and looping statements – Recursion and looping instructions are used in the Fibonacci sequence program in Java. A Fibonacci Series is a sequence of integers in Java where the next number equals the sum of the two preceding numbers. With the digits 0 and 1, the Fibonacci sequence starts. In a computer run-time research, the Fibonacci numbers play an essential role in calculating the greatest common divisor of two integers.

Java program to find the GCD and HCF of two numbers – GCD and HCF of two integers are calculated using a Java application. The precise divisor number that divides two or more integers is the greatest common divisor (GCD). The largest common factor is another name for it (HCF).

Abstract class program in java with output – Learn how to write programs in Java, such as an abstract class program with output. You can run the abstract class program with an example in this program. An abstract class is one that has been designated as such; it may or may not contain abstract methods.