java slip 6

 Slip 6 A) Write a java program to accept a number from user, if it zero then throw user defined Exception “Number Is Zero”, otherwise calculate the sum of first and last digit of that number. (Use static keyword).

Answer :

import java.io.*;

class NumZero extends Exception{}

public class Slip6A {

    static int n;

    public static void main(String args[]){

        int first,last=0;

        DataInputStream dr = new DataInputStream(System.in);

        try {

            System.out.print("Enter Number : ");

            n = Integer.parseInt(dr.readLine());

            if(n!=0){

                last = n % 10;

                first = n;

                    while(n>=10){

                        n = n / 10;

                    }

                first=n;

                System.out.print("Sum of First and Last Number is : " + (first + last));

            }else{

               throw new NumZero();

            }

           

        } catch (NumZero nz) {

            System.out.println("Number is Zero");

        }

        catch(Exception e){}

    }

}

Slip 6 B) Write a java program to display transpose of a given matrix.

Answer :

class Slip6B{

    public static void main(String args[]){

    int i, j;

    int array[][] = {{1,3,4},{2,4,3},{3,4,5}};

    System.out.println("Transpose of Matrix is :");

    for(i = 0; i < 3; i++)

        {

            for(j = 0; j < 3; j++)

            {

                System.out.print(array[j][i]+" ");

            }

            System.out.println(" ");

        }

    }

}