Issue-12- Statements resolved

src/main/java/com/ordestiny/tdd/conditional/Statements.java

@@ -0,0 +1,63 @@
+package com.ordestiny.tdd.conditional;
+
+import java.util.Scanner;
+
+public class Statements {
+
+    /**
+     *  If the number lies between 10 and 99999
+     *  then the method returns the number of digits 
+     *
+     * @param number
+     * @return String
+     */
+    public String ifElseIf(int number) {
+        if (number < 100 && number >= 10) {
+            return ("2 digit number");
+        } else if (number < 1000 && number >= 100) {
+            return ("3 digit number");
+        } else if (number < 10000 && number >= 1000) {
+            return ("4 digit number");
+        } else if (number < 100000 && number >= 10000) {
+            return ("5 digit number");
+        } else {
+            return ("Number is not between 10 & 99999");
+        }
+    }
+
+    public String switchStatement(Double number1, char operator, Double number2) {
+
+        /**
+         *  Selects operator using switch 
+         *  to perform the operation and get the result
+         *
+         * @param number1
+         * @param operator
+         * @param number2
+         */
+        Double result;
+
+        switch (operator) {
+
+            case '+':
+                result = number1 + number2;
+                return (number1 + " + " + number2 + " = " + result);
+
+            case '-':
+                result = number1 - number2;
+                return (number1 + " - " + number2 + " = " + result);
+
+            case '*':
+                result = number1 * number2;
+                return (number1 + " * " + number2 + " = " + result);
+
+            case '/':
+                result = number1 / number2;
+                return (number1 + " / " + number2 + " = " + result);
+
+            default:
+                return ("Invalid operator!");
+        }
+
+    }
+}

src/test/java/com/ordestiny/tdd/conditional/StatementsTest.java

@@ -0,0 +1,31 @@
+package com.ordestiny.tdd.conditional;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class StatementsTest {
+    private Statements object = new Statements();
+
+    @Test
+    public void ifElseIfTest() {
+        //number between 10 and 99999 whose no. of digits is to be found
+        assertEquals(object.ifElseIf(20), 2);
+        assertEquals(object.ifElseIf(100), 3);
+        assertEquals(object.ifElseIf(165), 3);
+        assertEquals(object.ifElseIf(9876), 4);
+        assertEquals(object.ifElseIf(90909), 5);
+        assertEquals(object.ifElseIf(24567), 5);
+    }
+
+    @Test
+    public void switchStatementTest() {
+        assertEquals(object.switchStatement(10, '+', 20), 30);
+        assertEquals(object.switchStatement(1234, '-', 891), 343);
+        assertEquals(object.switchStatement(17, '*', 987), 16779);
+        assertEquals(object.switchStatement(59865, '/', 5), 11973);
+        assertEquals(object.switchStatement(1098, '+', 4567), 5665);
+        assertEquals(object.switchStatement(1150, '*', 2), 2300);
+    }
+}