JAVA 728 Math combinations Write a program that prompts the

JAVA

*7.28 (Math: combinations) Write a program that prompts the user to enter 10 integers
and displays all combinations of picking two numbers from the 10.

Solution

import java.util.*;

class Combinations
{
   public static void main (String[] args)
   {
   int[] num = new int[10];
   Scanner scan = new Scanner(System.in);
   System.out.println(\"Enter 10 integers: \");
   for (int i = 0; i < 10; i++)
   num[i] = scan.nextInt();         //input 10 integer numbers
  
    System.out.println(\"Combinations of two integers from 10 integers :\");
   for (int i = 0; i < num.length; i++)
   {
       for (int j = 0; j < num.length; j++)
       {
           if (j != i) //if two numbers are not equal , make their combination
           {
               System.out.println(num[i] + \"--- \" + num[j] );
           }
        }
          
   }
}
}

output: