Radix sort in java. In java programming, this is used to sort the data in a specific order. Java is a programming language that allows you to perform radix type. In java programming, this is used to sort the data in a specific order. To sort the elements in java programs, a variety of important methods were used in the industry.

## Radix Sort in Java

Radix sort is a number sorting algorithm that ranks integers according to their digit positions. It works by calculating the place value of a number’s digits. It does not compare the numbers, unlike most other sorting algorithms such as Merge Sort, Insertion Sort, and Bubble Sort.

The radix sort algorithm sorts one digit at a time, ensuring that numbers that occur before other numbers in the input array will appear in the end, sorted array in the same order; this makes radix sort a stable algorithm.

## Flag Variable in Java

A flag variable is a variable that has only one value until a condition is true or false, at which point the variable’s value is changed. It’s a variable that allows you to manage the flow of a function or statement while it’s running, allowing you to check for particular conditions while it’s running.

In programming, the flag variable is used as a signal to inform the programme that a given condition has been met. It usually serves as a boolean variable that indicates whether a condition is true or false.

## For Loop to Execute Radix Sort in Java

In Java, the “for” loop is an entry-controlled loop that allows a user to iteratively run a block of statement(s) for a set number of times. The test-condition specified inside the “for” loop determines the number of iterations. The Java “for” loop is one of the most simple Java loops to grasp.

```
import java.util.ArrayList;
import java.util.List;
public class Main
{
public static void main(String[] args)
{
int[] num = {5,565,64,4343,778,6656,567,456,7};
radixsort(num);
for (int h : num)
System.out.print(h + " ");
}
public static void radixsort(int[] input)
{
List[] buckets = new ArrayList[10];
for (int i = 0; i < buckets.length; i++) {
buckets[i] = new ArrayList();
}
boolean flag = false;
int tmp = -1, divisor = 1;
while (!flag) {
flag = true;
for (Integer i : input) {
tmp = i / divisor;
buckets[tmp % 10].add(i);
if (flag && tmp > 0) {
flag = false;
}
}
int a = 0;
for (int b = 0; b < 10; b++) {
for (Integer i : buckets[b]) {
input[a++] = i;
}
buckets[b].clear();
}
divisor *= 10;
}
}
}
```

Output:

5 7 8 64 456 565 567 778 4343 6656 6678

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