Edit

2026-04-24 15:43:05 +03:30
parent 9b074cfdf0
commit 158a504a33
6 changed files with 410 additions and 45 deletions
@@ -0,0 +1,108 @@
+package Rational;
+
+public class RationalTest {
+    public static void main(String[] args) {
+        System.out.println("=== Testing Rational Operations ===\n");
+
+        // Create some rational numbers
+        Rational r1 = new Rational(1, 2);   // 1/2
+        Rational r2 = new Rational(1, 3);   // 1/3
+        Rational r3 = new Rational(3, 4);   // 3/4
+        Rational r4 = new Rational(2, 5);   // 2/5
+        Rational r5 = new Rational(5, 1);   // 5 (integer)
+
+        System.out.println("Created rational numbers:");
+        System.out.println("r1 = " + r1);
+        System.out.println("r2 = " + r2);
+        System.out.println("r3 = " + r3);
+        System.out.println("r4 = " + r4);
+        System.out.println("r5 = " + r5);
+        System.out.println();
+
+        // Test ADDITION
+        System.out.println("=== ADDITION ===");
+        System.out.println("Instance method - r1 + r2 = " + r1.add(r2));
+        System.out.println("Static method - Rational.add(r1, r2) = " + Rational.add(r1, r2));
+        System.out.println("Expected: 1/2 + 1/3 = 5/6");
+        System.out.println("Decimal: " + r1.add(r2).toDouble());
+        System.out.println();
+
+        // Test SUBTRACTION
+        System.out.println("=== SUBTRACTION ===");
+        System.out.println("Instance method - r1 - r2 = " + r1.subtract(r2));
+        System.out.println("Static method - Rational.subtract(r1, r2) = " + Rational.subtract(r1, r2));
+        System.out.println("Expected: 1/2 - 1/3 = 1/6");
+        System.out.println("Decimal: " + r1.subtract(r2).toDouble());
+        System.out.println();
+
+        // Test MULTIPLICATION
+        System.out.println("=== MULTIPLICATION ===");
+        System.out.println("Instance method - r1 * r3 = " + r1.multiply(r3));
+        System.out.println("Static method - Rational.multiply(r1, r3) = " + Rational.multiply(r1, r3));
+        System.out.println("Expected: 1/2 * 3/4 = 3/8");
+        System.out.println("Decimal: " + r1.multiply(r3).toDouble());
+        System.out.println();
+
+        // Test DIVISION
+        System.out.println("=== DIVISION ===");
+        System.out.println("Instance method - r1 ÷ r2 = " + r1.divide(r2));
+        System.out.println("Static method - Rational.divide(r1, r2) = " + Rational.divide(r1, r2));
+        System.out.println("Expected: 1/2 ÷ 1/3 = 3/2");
+        System.out.println("Decimal: " + r1.divide(r2).toDouble());
+        System.out.println();
+
+        // Test with negative numbers
+        System.out.println("=== NEGATIVE NUMBERS ===");
+        Rational neg1 = new Rational(-2, 3);
+        Rational neg2 = new Rational(4, -5);
+        System.out.println("neg1 = " + neg1);  // Should show -2/3
+        System.out.println("neg2 = " + neg2);  // Should show -4/5
+        System.out.println("neg1 + neg2 = " + neg1.add(neg2));
+        System.out.println("-2/3 + -4/5 = (-10/15 + -12/15) = -22/15");
+        System.out.println("neg1 * neg2 = " + neg1.multiply(neg2));
+        System.out.println("(-2/3) * (-4/5) = 8/15");
+        System.out.println();
+
+        // Test simplification
+        System.out.println("=== SIMPLIFICATION ===");
+        Rational r6 = new Rational(6, 8);
+        Rational r7 = new Rational(10, 25);
+        Rational r8 = new Rational(18, -24);
+        System.out.println("6/8 simplified = " + r6);
+        System.out.println("10/25 simplified = " + r7);
+        System.out.println("18/-24 simplified = " + r8);
+        System.out.println();
+
+        // Test chaining operations
+        System.out.println("=== CHAINING OPERATIONS ===");
+        Rational result = r1.add(r2).multiply(r3).divide(r4);
+        System.out.println("((r1 + r2) * r3) ÷ r4 = " + result);
+        System.out.println("((1/2 + 1/3) * 3/4) ÷ 2/5 = (5/6 * 3/4) ÷ 2/5 = (15/24) ÷ 2/5 = 15/24 * 5/2 = 75/48 = 25/16");
+        System.out.println("Decimal: " + result.toDouble());
+        System.out.println();
+
+        // Test integer handling
+        System.out.println("=== INTEGER HANDLING ===");
+        System.out.println("r5 = " + r5);  // Should show 5, not 5/1
+        System.out.println("r5 + r1 = " + r5.add(r1));
+        System.out.println("5 + 1/2 = 11/2");
+        System.out.println("r1 * r5 = " + r1.multiply(r5));
+        System.out.println("1/2 * 5 = 5/2");
+        System.out.println();
+
+        // Test exception handling
+        System.out.println("=== EXCEPTION TEST ===");
+        try {
+            Rational invalid = new Rational(1, 0);
+        } catch (IllegalArgumentException e) {
+            System.out.println("Caught exception: " + e.getMessage());
+        }
+
+        try {
+            Rational zero = new Rational(0, 1);
+            Rational divisionByZero = r1.divide(zero);
+        } catch (ArithmeticException e) {
+            System.out.println("Caught division by zero: " + e.getMessage());
+        }
+    }
+}