Function Overloading ICSE BlueJ Programs On String

 Design a class to overload a function joyString() as follows:

(i) void joyString(String s, char ch1, char ch2)- with one string argument and two character arguments

that replaces the character argument ch1 with the character argument ch2 in the given string s and prints 

the new string.

Example: INPUT:s = “TECHNALAGY”

ch1 = ‘A’

ch2 = ‘O’

OUTPUT:“TECHNOLOGY”

(ii) void joyString(String s)- with one string argument that prints the position of the first space 

and the last space of the given string s.

Example:

INPUT:

s = “Cloud computing means Internet-based computing”

OUTPUT:

First index: 5

Last index: 36

(iii) void joyString(String s1, String s2)- with two string arguments that combines the two strings 

with a space between them and prints the resultant string.

Example:

INPUT:

s1 = “COMMON WEALTH”

s2 = “GAMES”

OUTPUT:

COMMON WEALTH GAMES

(use library functions)

Program

class Overloading
{
  
    void joyString(String s, char ch1, char ch2)
{
        s = s.replace(ch1, ch2);
        System.out.println(s);
    }
  void joyString(String s)
{
        int first = s.indexOf(' ');
        int last = s.lastIndexOf(' ');
        System.out.println("First index of space is: " + first);
        System.out.println("Last index of space is: " + last);
    }
    void joyString(String s1, String s2)
{
    String s= s1.concat(" ");
    s= s.concat(s2);    
        System.out.println(s);
    }
 
  public static void main(String args[])
  {
    Overloading ob = new Overloading();
    ob.joyString("computer",'o','i');
    ob.joyString("topicwise computer icse questions");
    ob.joyString("computer","programming");
  }
}