Program for product two numbers using function in java.

import java.util.*;

public class function {

    public static int calculateProduct(int a,int b){

        return a*b;

    }

    public static void main(String[] args){

        Scanner sc=new Scanner(System.in);

        System.out.print("enter two numbers=");

        int a=sc.nextInt();

        int b=sc.nextInt();

        System.out.print("the product of two number is="+calculateProduct(a,b));

    }

}

■》Output->

enter two numbers=>

4

5

the product of two number is= 20