/* BIGO of this program is O(n*n) i.e O(n^2)*/ class Main { void printAllNumbersThenAllPAirSums(int q[]) { System.out.println("All Numbers are:-"); for(int i=0;i<q.length;i++) //O(n) { System.out.println(q[i]); } System.out.println("Sum of pairs are:-"); int k=0; while(k<q.length) { for(int j=0;j<q.length;j++) { System.out.println(q[k]+q[j]); } k++; } } public static void main(String args[]) { int n1[]={1,2,3,4,5}; Main obj=new Main(); obj.printAllNumbersThenAllPAirSums(n1); } }