Question

How to define and use int array in Java

Answer 1

import java.util.Arrays;

public class MyClass {
    public static void main(String args[]) {
        int[] arr1 = {1, 28, 9, 3, 5};
        int arr2[] = {1, 28, 9, 3, 5};  
        
        System.out.println(Arrays.toString(arr1));
        System.out.println(Arrays.toString(arr2));
    }
}



/*
run:

[1, 28, 9, 3, 5]
[1, 28, 9, 3, 5]

*/

 

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Answer 2

import java.util.Arrays;

public class MyClass {
    public static void main(String args[]) {
        int arr[] = new int[]{1, 28, 9, 3, 5};  
        
        System.out.println(Arrays.toString(arr));
    }
}



/*
run:

[1, 28, 9, 3, 5]

*/

 

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Answer 3

import java.util.Arrays;

public class MyClass {
    public static void main(String args[]) {
        int arr[] = new int[5];
        
        for (int i = 0; i < arr.length; i++) {
            arr[i] = i;
        }

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



/*
run:

0
1
2
3
4

*/

 

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Answer 4

import java.util.Arrays;

public class MyClass {
    public static void main(String args[]) {
        int arr[] = new int[7];
        
        for (int i = 0; i < arr.length; i++) {
            arr[i] = i;
        }

        for (int n : arr) {
            System.out.println(n);
        }
    }
}



/*
run:

0
1
2
3
4
5
6

*/

 

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