TechOnespot

12.Write a Java program to find sum of first and last digit of a number. Static :-  class loop12 { public static void main(String args[]) { int n=1234,ld,ft,sum=0; ld = n%10; System.out.println("last number :- "+ld); ft = n; while(ft>=10) { ft = ft/10; } System.out.println("First  number :- "+ft); sum = ft+ld; System.out.println("The Sum is :-"+sum); } } Output :-  Dynamic :-   import java.util.*; class loop12 { public static void main(String args[]) { Scanner in = new Scanner(System.in); int n,ld,ft,sum=0; System.out.println("Enter the number :-  "); n=in.nextInt(); ld = n%10; System.out.println("Last Digit :-"+ld); ft=n; while(ft>=10) { ft = ft/10; } System.out.println("First Digit :-"+ft); sum = ft+ld; System.out.println("The sum is :- "+sum); } } Output :-