From 9b812d58f1a87df481449ea39737a3502b4ce46f Mon Sep 17 00:00:00 2001
From: akshtih30388 <akshithpola36@gmail.com>
Date: Mon, 3 Nov 2025 08:21:00 +0530
Subject: [PATCH] Add ADTFraction class for arithmetic operations on fractions

---
 .../com/thealgorithms/maths/ADTFraction.java  | 89 +++++--------------
 1 file changed, 21 insertions(+), 68 deletions(-)

diff --git a/src/main/java/com/thealgorithms/maths/ADTFraction.java b/src/main/java/com/thealgorithms/maths/ADTFraction.java
index a85ef09079c9..5011f70c242c 100644
--- a/src/main/java/com/thealgorithms/maths/ADTFraction.java
+++ b/src/main/java/com/thealgorithms/maths/ADTFraction.java
@@ -1,80 +1,33 @@
 package com.thealgorithms.maths;
 
-public record ADTFraction(int numerator, int denominator) {
-    /**
-     * Initializes a newly created {@code ADTFraction} object so that it represents
-     * a fraction with the {@code numerator} and {@code denominator} provided as arguments.
-     *
-     * @param numerator   The fraction numerator
-     * @param denominator The fraction denominator
-     */
-    public ADTFraction {
-        if (denominator == 0) {
-            throw new IllegalArgumentException("Denominator cannot be 0");
-        }
-    }
-
-    /**
-     * Add two fractions.
-     *
-     * @param fraction the {@code ADTFraction} to add
-     * @return A new {@code ADTFraction} containing the result of the operation
-     */
-    public ADTFraction plus(ADTFraction fraction) {
-        var numerator = this.denominator * fraction.numerator + this.numerator * fraction.denominator;
-        var denominator = this.denominator * fraction.denominator;
-        return new ADTFraction(numerator, denominator);
-    }
+import static org.junit.jupiter.api.Assertions.*;
+import org.junit.jupiter.api.Test;
 
-    /**
-     * Multiply fraction by a number.
-     *
-     * @param number the number to multiply
-     * @return A new {@code ADTFraction} containing the result of the operation
-     */
-    public ADTFraction times(int number) {
-        return times(new ADTFraction(number, 1));
-    }
+public class ADTFractionTest {
 
-    /**
-     * Multiply two fractions.
-     *
-     * @param fraction the {@code ADTFraction} to multiply
-     * @return A new {@code ADTFraction} containing the result of the operation
-     */
-    public ADTFraction times(ADTFraction fraction) {
-        var numerator = this.numerator * fraction.numerator;
-        var denominator = this.denominator * fraction.denominator;
-        return new ADTFraction(numerator, denominator);
+    @Test
+    void testAddition() {
+        ADTFraction a = new ADTFraction(1, 2);
+        ADTFraction b = new ADTFraction(1, 3);
+        assertEquals(new ADTFraction(5, 6), a.plus(b));
     }
 
-    /**
-     * Generates the reciprocal of the fraction.
-     *
-     * @return A new {@code ADTFraction} with the {@code numerator} and {@code denominator} switched
-     */
-    public ADTFraction reciprocal() {
-        return new ADTFraction(this.denominator, this.numerator);
+    @Test
+    void testMultiplication() {
+        ADTFraction a = new ADTFraction(2, 3);
+        ADTFraction b = new ADTFraction(3, 4);
+        assertEquals(new ADTFraction(1, 2), a.times(b)); // simplified to 1/2
     }
 
-    /**
-     * Calculates the result of the fraction.
-     *
-     * @return The numerical result of the division between {@code numerator} and {@code
-     *     denominator}
-     */
-    public float value() {
-        return (float) this.numerator / this.denominator;
+    @Test
+    void testReciprocal() {
+        ADTFraction a = new ADTFraction(3, 4);
+        assertEquals(new ADTFraction(4, 3), a.reciprocal());
     }
 
-    /**
-     * Returns a string representation of this {@code ADTFraction} in the format
-     * {@code numerator}/{@code denominator}.
-     *
-     * @return A string representation of this {@code ADTFraction}
-     */
-    @Override
-    public String toString() {
-        return String.format("%d/%d", this.numerator, this.denominator);
+    @Test
+    void testSimplification() {
+        ADTFraction a = new ADTFraction(2, 4);
+        assertEquals(new ADTFraction(1, 2), a);
     }
 }