2) Write a Java program that converts given String into Lower and Upper case Strings.

 class loweruppercase

{

void lower(String s)

{

System.out.println(s.toLowerCase());

}

void upper(String s)

{

System.out.println(s.toUpperCase());

}

public static void main(String as[])

{

System.out.println("string lower and upper case program");

loweruppercase ob=new loweruppercase();

ob.lower("Welcome To DBJ College, Chiplun");

ob.upper("Welcome To DBJ College, Chiplun");

}

}

output:

string lower and upper case program

welcome to dbj college, chiplun

WELCOME TO DBJ COLLEGE, CHIPLUN