Java/src/main/java/com/thealgorithms/maths/PythagoreanTriple.java at master · TheAlgorithms/Java · GitHub

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packagecom.thealgorithms.maths;

/**
 * Utility class to check if three integers form a Pythagorean triple.
 * A Pythagorean triple consists of three positive integers a, b, and c,
 * such that a² + b² = c².
 *
 * Common examples:
 * - (3, 4, 5)
 * - (5, 12, 13)
 *
 * Reference: https://en.wikipedia.org/wiki/Pythagorean_triple
 */
publicfinalclassPythagoreanTriple {

privatePythagoreanTriple() {
 }

/**
 * Checks whether three integers form a Pythagorean triple.
 * The order of parameters does not matter.
 *
 * @param a one side length
 * @param b another side length
 * @param c another side length
 * @return {@code true} if (a, b, c) can form a Pythagorean triple, otherwise {@code false}
 */
publicstaticbooleanisPythagTriple(inta, intb, intc) {
if (a <= 0 || b <= 0 || c <= 0) {
returnfalse;
 }

// Sort the sides so the largest is treated as hypotenuse
int[] sides = {a, b, c};
java.util.Arrays.sort(sides);

intx = sides[0];
inty = sides[1];
inthypotenuse = sides[2];

returnx * x + y * y == hypotenuse * hypotenuse;
 }
}