How to Sort an Array in Java - Step by Step Examples

How to Sort an Array in Java ?

Answer

To sort an array in Java, you can use the Arrays.sort() method for ascending order and Arrays.sort() method with a custom comparator for descending order.

✐ Examples

1 Sort Integer Array in Ascending Order

In this example,

We create an integer array named numbers with values 5, 2, 8, 1, 6.
We use the Arrays.sort() method on the array to sort it in ascending order.
The Arrays.sort() method sorts the array elements in ascending order.
Finally, we print the sorted array numbers to standard output.

Java Program

// Sort Integer Array in Ascending Order
import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        int[] numbers = {5, 2, 8, 1, 6};
        Arrays.sort(numbers);
        System.out.println("Sorted array in ascending order: " + Arrays.toString(numbers));
    }
}

Output

Sorted array in ascending order: [1, 2, 5, 6, 8]

2 Sort Integer Array in Descending Order

In this example,

We create an integer array named numbers with values 5, 2, 8, 1, 6.
We define a custom comparator to sort the array in descending order using the Arrays.sort() method.
The custom comparator sorts the array elements in descending order.
Finally, we print the sorted array numbers to standard output.

Java Program

// Sort Integer Array in Descending Order
import java.util.Arrays;
import java.util.Comparator;

public class Main {
    public static void main(String[] args) {
        Integer[] numbers = {5, 2, 8, 1, 6};
        Arrays.sort(numbers, Comparator.reverseOrder());
        System.out.println("Sorted array in descending order: " + Arrays.toString(numbers));
    }
}

Output

Sorted array in descending order: [8, 6, 5, 2, 1]

Summary

In this tutorial, we learned How to Sort an Array in Java language with well detailed examples.

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How to Sort an Array in Java - Step by Step Examples

How to Sort an Array in Java ?

Answer

✐ Examples

1 Sort Integer Array in Ascending Order

Java Program

Output

2 Sort Integer Array in Descending Order

Java Program

Output

Summary

More Java Arrays Tutorials