Question

Write a program in Java to enter a character and check whether it is uppercase letter,

lowercase letter or a digit.​

Answer 1

Java Program to Check if given Alphabets are Uppercase or...

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class Alphabet_Check.

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

char m;

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

System. out. print("Enter any alphabet:");

Answer 2

Answer:

for input

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class Alphabet_Check

{

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

{

char m;

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

System.out.print("Enter any alphabet:");

m = (char) bf.read();

if(m >= 97 && m <= 123)

{

System.out.println("Lower Case");

}

else if(m >= 65 && m <= 96)

{

System.out.println("Upper Case");

}

else if(m >= 48 && m <= 57)

{

System.out.println("Digit");

}

}

}

Explanation:

for output

$ javac Alphabet_Check.java

$ java Alphabet_Check

Enter any alphabet:B

Upper Case

Enter any alphabet:z

Lower Case

Enter any alphabet:9

Digit