WAP to input a string and print the string input by user in upper case

 Example:-

Input : welcome to school

Output : WELCOME TO SCHOOL

Approach :

We will be using 'toUpperCase()' method to convert lowercase string to uppercase. 

Take a input from the user using Scanner class and then use 'toUpperCase()' method to convert the string to Uppercase. 

You can use 'toLowerCase()' to convert the String to lowercase

Code :

import java.util.Scanner;

public class LowToUp {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter String in Lowercase :-");
        String LowStr = sc.nextLine();

        String UpStr = LowStr.toUpperCase();
        System.out.println("\n"+UpStr);
    }
}

Output :

Enter String in Lowercase :-

welcome to school

WELCOME TO SCHOOL

Related links

Convert String to lowercase

Count the number of uppercase letters in Character Array