Returning Multiple values in Java

Java doesn’t support multi-value returns. We can use following solutions to return multiple values.


If all returned elements are of same type

We can return an array in Java. Below is a Java program to demonstrate the same.

// A Java program to demonstrate that a method
// can return multiple values of same type by
// returning an array
class Test
    // Returns an array such that first element
    // of array is a+b, and second element is a-b
    static int[] getSumAndSub(int a, int b)
        int[] ans = new int[2];
        ans[0] = a + b;
        ans[1] = a - b;

        // returning array of elements
        return ans;

    // Driver method
    public static void main(String[] args)
        int[] ans = getSumAndSub(100,50);
        System.out.println("Sum = " + ans[0]);
        System.out.println("Sub = " + ans[1]);

The output of the above code will be:

Sum = 150
Sub = 50


If returned elements are of different types

We can encapsulate all returned types into a class and then return an object of that class.

Let us have a look at the following code.

// A Java program to demonstrate that we can return
// multiple values of different types by making a class
// and returning an object of class.

// A class that is used to store and return
// two members of different types
class MultiDiv
    int mul;    // To store multiplication
    double div; // To store division
    MultiDiv(int m, double d)
        mul = m;
        div = d;

class Test
    static MultiDiv getMultandDiv(int a, int b)
        // Returning multiple values of different
        // types by returning an object
        return new MultiDiv(a*b, (double)a/b);

    // Driver code
    public static void main(String[] args)
        MultiDiv ans = getMultandDiv(10, 20);
        System.out.println("Multiplication = " + ans.mul);
        System.out.println("Division = " + ans.div);


 Multiplication = 200
Division = 0.5

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