Question

Write a program by using a class in Java with the following specifications:

Class name: Stringop 
Data members: String str
Member Methods:
Stringop(): to initialize str with NULL.
Stringop(): to initialize str with NULL.
void encode(): to replace and print each character of the string with the second next character in the ASCII table.
Example: A with C, B with D and so on ... 
void print(): to display each word of the String in a separate line 

Answer 1

import java.util.*; 
class Stringop 
{String str; 
StringopO 
{str = null; 
}

void encode()
{Scanner ob = new Scanner(System.in);
char ch;
String s2 = "";
System.out.println("Enter the string");
str = ob.nextLine();
for (int i = 0; i < str.length(); i++)
{ch = str.charAt(i);
if (ch != "") // otherwise spaces will also be replaced
s2 += (char) (ch + 2);
else
s2 += ch;
}
str=s2;
}

void print()
{String wrd = "";
str = str +' ';
for (int i = 0; i < str.length(); i++)
{if (str.charAt(i) != " ")
wrd += str.charAt(i);
else
{System.out.println(wrd);
wrd = "";
}}}

public static void main(String args[])
{Stringop S = new Stringop();
S.encode();
S.print();
}}