Question

Using the switch-case statement, write a menu driven program to do the following :

(a) To generate and print Letters from A to Z and their Unicode Letters Unicode

(b) Display the following pattern using iteration (looping) statement: 1

Answer 1

import java.io.*;
import java.util.*;
class SwitchCase {
public static void main(String args[ ]) {
Scanner sc = new Scanner (System.in);
System.out.println(” 1. Enter 1 for Unicode:”);
System.out.prindn(” 2. Enter 2 for Pattern:”);
System.out.println(“Enter your choice:”);
int choice sc.nextlntO;
switch(choice){
case 1:
char ch;
System.out.println( “Letters \t Unicode”);
for (ch = ‘A’; ch < = ‘Z’; ch+ +) {
System.out.println(ch +”\t” + (int)ch);
}
break;
case 2:
int i, j;
for (i = 1; i < = 5; i+ +) {
for (j = 1; j < = i; j + +)
{
System.out.print(j + “”);.
}
System.out.printlnO;
}
break;
default:
System.out.println(“Wrong choice entered:”);
}
}
}