// write a program in java which converts a lower case to upper case string.

CODE 

import java.io.*;

import java.lang.*;

class UpperCase

{

public static void main(String args[ ]) throws IOException

{

BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));

System.out.print("Enter the lowercase character : ");

String s = buff.readLine();

System.out.println("Upper case of "+s +" is "+s.toUpperCase());

}

}

OUTPUT DISPLAY