Question

Write a program for IJVM called scramble that takes lowercase text from input and prints the next character (i.e. ‘b’ is printed as ‘c’) and uppercase text and prints the character before (‘B’ is printed as ‘A’). Print all other characters as is.

Answer 1

Complete Program:

import java.util.Scanner;

class IJvm {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

char ch, c, choice = 'k';

do {

System.out.println("Enter one character ");

c = sc.next().charAt(0);

int ascii = (int) c;

if (ascii >= 65 && ascii <= 122) {

if (Character.isLowerCase(c)) {

if (ascii == 122)

ascii = (int) 'a';

else

ascii = ascii + 1;

} else {

if (ascii == 65)

ascii = (int) 'Z';

else

ascii = ascii - 1;

}

System.out.println((char) (ascii));

} else {

System.out.println("Invalid input!!");

}

System.out.print("Do you want to enter one more character (y/n): ");

choice = sc.next().charAt(0);

} while (choice == 'y' || choice == 'Y');

}

}

Screenshots: