Question

Write a program in Java to input a character. Display next 5 characters.

Answer 1

Next 5 Characters - Java

We can use Scanner to take user input. We will be considering the ASCII Table for characters.

The ASCII Table has codes ranging from 0-127 (total 128). The characters corresponding to 0-31 are Non-Printable. 32-127 are Printable Characters.

We will be only considering the Printable Characters.

We can typecast a char into int or byte to get the ASCII Code. We can then just increase this integer value by 1 and typecast back into char to get the corresponding character.

Note that we must use Modulo (%) 128 operation, because ASCII ranges from 0-127. Also, if at some moment our integer lies in 0-31, we must add 32 to it and bring it to the Printable Character Range.

Here's a Java Program which does everything mentioned and prints the next 5 characters from the input character.

$\rule{320}{1}$

import java.util.Scanner;

public class NextFiveChar

{

   public static void main(String[] args)

   {

       Scanner scr = new Scanner(System.in);

       System.out.print("Enter a character: ");

       char inputCharacter = scr.next(). charAt(0);     //Character Input

       scr.close();

       

       System.out.println("The next 5 printable ASCII Characters are:");

       

       int ASCII_Code = (int)inputCharacter;   //Typecast char into int

       for(int i = 0; i < 5; i++)

       {

           ASCII_Code = (ASCII_Code + 1) % 128;    //ASCII Codes range from 0 to 127

           if(ASCII_Code < 32)     //0-31 are Non-Printable Characters

           {

               ASCII_Code += 32;  

           }

           //Typecast into char and print

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

       }

   }

}

Answer 2

Write a program in Java to input a character. Display next 5 characters.