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Add Java program to check whether an input character is a vowel or consonant by keshavMM004 · Pull Request #743 · javaistic/javaistic · GitHub

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---
title: Java Program to check whether input character is vowel or consonant.
shortTitle: Check Input character for vowel or consonant.
description: In this program you'll learn, how to check that a character is vowel or consonant.
---

To understand this example, you should have the knowledge of the following Java programming topics:

- [Java Operators](/docs/operators)
- [Java Basic Input and Output](/docs/basic-input-output)
- [Control Flow statement - For-Loop in Java](/docs/for-loop)

## Checking input character

A java program to check the input character is vowel or consonant is as follows:

### Code:

```java
import java.util.Scanner;

public class VowelOrConsonant {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);

// Input character from user
System.out.print("Enter a single alphabet character: ");
char alphabet = scanner.next().charAt(0);
char ch = String.valueOf(alphabet).toLowerCase().charAt(0);
// Check if input is an alphabet
if ((ch >= 'a' && ch <= 'z')) {
// Check for vowel
if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
System.out.println(alphabet + " is a vowel.");
} else {
System.out.println(alphabet + " is a consonant.");
}
} else {
System.out.println("Invalid input. Please enter an alphabet letter.");
}
scanner.close();
}
}

```

### Output:

```plaintext
Enter a single alphabet character: E
E is a vowel.

Enter a single alphabet character: f
f is a consonant.

```
The Java program:

Takes a single character as input.

Converts it to lowercase.

Checks if it’s an alphabet.

If it's a vowel (a, e, i, o, u), it prints “vowel”.

Otherwise, it prints “consonant”.

If not a letter, it prints “Invalid input”.

Simple and effective for basic character classification.
1 change: 1 addition & 0 deletions content/programs/meta.json
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"check-even-or-odd",
"java-program-to-check-divisibility",
"java-program-to-check-Leap-year",
"java-program-to-check-whether-input-character-is-vowel-or-consonant",

"---Loops & Recursion---",
"factorial-in-java",
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