All Pairs of Elements In An Array Whose Sum Is Equal To A Given Number

//PENDING QUESTIONS:
//13)How to find largest number less than a given number and without a given digit?

package practice;

import java.util.Scanner;

public class rough
{
	public static void main(String args[]) 
	{
		int[] array= {4, 5, 7, 11, 9, 13, 8, 12};
		int GN = 20;
		
		for(int i=0;i<array.length;i++) 
		{
			for(int j=i+1;j<array.length;j++) 
			{
				if(array[i]+array[j] == 20) 
				{
					System.out.println("("+array[i]+","+array[j]+")");
				}
			}
		}
		
	}
}