Triangle Type Checker in Java: Explanation & Practice

Problem summary

Given three sides, determine if they form a valid triangle and identify its type (Equilateral, Isosceles, Scalene).

Starter code

public class Main {
    public static void main(String[] args) {
        int a = 5, b = 5, c = 5; // Test case 1
        
        // Check if valid triangle and print type
        // Print: Equilateral / Isosceles / Scalene / Not a triangle
    }
}

Expected output and test cases

• 5,5,5 is equilateral

  Equilateral

• 5,5,3 is isosceles

  Isosceles

• 3,4,5 is scalene

  Scalene

• 1,2,10 is invalid

  Not a triangle

Hints

1. Triangle inequality: sum of any two sides > third
2. All sides equal = Equilateral
3. Two sides equal = Isosceles

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