Check Number Sign
This program checks if a number is positive, negative, or zero.
Problem Statement
Write a Java program that checks if a number is positive, negative, or zero.
Source Code
| 1 | public class NumberSign { |
| 2 | public static void main(String[] args) { |
| 3 | int num = 0; |
| 4 | if(num > 0) { |
| 5 | System.out.println(num + " is positive - Eduinq"); |
| 6 | } else if(num < 0) { |
| 7 | System.out.println(num + " is negative - Eduinq"); |
| 8 | } else { |
| 9 | System.out.println(num + " is zero - Eduinq"); |
| 10 | } |
| 11 | } |
| 12 | } |
Program Output
0 is zero - Eduinq
Explanation
The program uses an if-else ladder to check three possibilities. If the number is greater than zero, it prints positive. If less than zero, it prints negative. Otherwise, it prints zero. This structure ensures only one condition executes, making it efficient for mutually exclusive checks. It demonstrates how if-else ladders can handle multiple outcomes in a clean way. Shows classification of numbers using if-else ladder.