Question

How to return array from a method in Java

Answer 1

import java.util.Arrays;

public class MyClass {
    public static int[] getArray() {
        return new int[] {1, 2, 3, 4, 5, 6, 7, 8};  
    }
    public static void main(String args[]) {
        int[] array = getArray();

        System.out.println(Arrays.toString(array));
        
        for (int i = 0; i < array.length; i++) { 
            System.out.println(array[i]);  
        }  
    }
}




/*
run:
     
[1, 2, 3, 4, 5, 6, 7, 8]
1
2
3
4
5
6
7
8
     
*/

 

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Answer 2

public class MyClass {
    public static int[] reverse(int[] arr) { 
        int[] rev = new int[arr.length];
        
        for (int i = 0, j = rev.length - 1; i < arr.length; i++, j--) { 
            rev[j] = arr[i]; 
        }
        return rev;
    }
    public static void main(String args[]) {
        int[] arr1 = {1, 2, 3, 4, 5};
        int[] arr2 = reverse(arr1);
        
        for (int i = 0; i < arr2.length; i++) { 
            System.out.print(arr2[i] + " ");
        }
    }
}


/*
run:

5 4 3 2 1 

*/

 

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