TwoSum.java

package com.sarvesh.javabasics;

import java.util.Scanner;

public class TwoSum {

 public static void main(String[] args) {

 Scanner sc = new Scanner(System.in);

 System.out.print("Enter number of elements: ");
 int n = sc.nextInt();

 int[] arr = new int[n];
 System.out.println("Enter elements:");
 for (int i=0;i<n;i++) {
 arr[i] = sc.nextInt();
 }
 System.out.print("Enter target: ");
 int target = sc.nextInt();

 for (int i=0;i<n;i++) {
 for (int j=i+1;j<n;j++) {
 if (arr[i] + arr[j] == target) {
 System.out.println("Index: [" + i + ", " + j +"]"); 
 }
 }
 }
 sc.close();
 }
}