Need help with convert to uppercase program!

[ultimashadow]

import java.util.Scanner;


public class ToUpperCase {
	public static void main(String[] args) {	
	Scanner stdin = new Scanner(System.in);
	int letter = (char)('a' - 'A');
	
	System.out.print("Enter a letter ");
	
	letter = stdin.nextInt(); 
	stdin.nextLine();
	
	if ( letter >= 'a' && letter <= 'z' )
	System.out.println(" The uppercase equivalent is " + (letter - 'a' - 'A') );
	else System.out.println("The character is not a letter");
	
	}
}

when i run it i get and dont know how to fix....

Exception in thread "main" java.util.InputMismatchException
at java.util.Scanner.throwFor(Unknown Source)
at java.util.Scanner.next(Unknown Source)
at java.util.Scanner.nextInt(Unknown Source)
at java.util.Scanner.nextInt(Unknown Source)
at ToUpperCase.main(ToUpperCase.java:11)

[diamonddragon]

letter = stdin.nextInt(); is expecting value of type int.

[dinesh.guntha]

stdin.nextInt() reads int value.
you need to use the string value to read ie. stdin.nextLine() and the character from string & get the character from the string by using charAt(index) function.

[bams]

Hope this helps

            Scanner stdin = new Scanner(System.in);
	    char letter = 'a';   
	    System.out.print("Enter a letter ");
	    try{
		    String inputLetter = stdin.next("[a-zA-Z]+");
		    letter = (inputLetter.trim().charAt(0)); 

		    if ( Character.isLetter(letter)){
			    System.out.println(" The uppercase equivalent is " + Character.toUpperCase(letter) ); 
		    }else{
		    	System.out.println("The character is not a letter");
		    } 
	    }catch (Exception e) {  
	    	System.out.println("The character is not a Letter"); 
		}