Java program to check that input character is vowel or constant

 Java program to check that input character is vowel or constant using if-else and java ternary operator

1. public class VowelConstant {
2.  
3. /**
4.   * Check that input character is a vowel or constant
5.   *
6.   * @param args
7.   */
8. public static void main(String[] args) {
9.  
10. // using java if-else
11. System.out.println("==== using java if-else ===");
12. checkInputChar('a'); // Output -> Vowel
13. checkInputChar('A'); // Output -> Vowel
14. checkInputChar('f'); // Output -> Constant
15. checkInputChar('z'); // Output -> Constant
16.  
17. // using java ternary operator
18. System.out.println("==== using java ternary operator ===");
19. checkInputCharUsingTernary('a'); // Output -> Vowel
20. checkInputCharUsingTernary('A'); // Output -> Vowel
21. checkInputCharUsingTernary('f'); // Output -> Constant
22. checkInputCharUsingTernary('z'); // Output -> Constant
23. }
24.  
25. // using java if-else
26. private static void checkInputChar(Character ch) {
27. if ((ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u')
28. || (ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U')) {
29. System.out.println("Vowel");
30. } else {
31. System.out.println("Constant");
32. }
33. }
34.  
35. // using java ternary operator
36. private static void checkInputCharUsingTernary(Character ch) {
37. String result = (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u')
38. || (ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U') ?

39. "Vowel" : "Constant";

40. System.out.println(result);
41. }
42. }

Output -

====  using java if-else ===

Vowel

Vowel

Constant

Constant

====  using java ternary operator ===

Vowel

Vowel

Constant

Constant