loops

src/tutorial/Loops.java

@@ -0,0 +1,81 @@
+/**
+ * Created by Oliver on 25/06/2017.
+ */
+public class Loops {
+    public static void test_while() {
+        System.out.println("*****while*****");
+        int x = 1;
+        while (x < 10) {
+            System.out.println("x in while: " + x);
+            x++;
+        }
+    }
+
+    public static void test_do_while() {
+        System.out.println("*****do while*****");
+        int x = 10;
+        do {
+            System.out.println("x in do while: " + x);
+            x++;
+        } while (x < 10);
+    }
+
+    public static void test_for() {
+        System.out.println("*****for*****");
+        for (int x = 10; x < 20; x++) {
+            System.out.println("x in for: " + x);
+        }
+    }
+
+    public static void test_enhanced_for() {
+        System.out.println("*****enhanced for*****");
+        int[] numbers = {20, 21, 22, 23, 24};
+        for (int x : numbers) {
+            System.out.println("x in enhanced for: " + x);
+        }
+    }
+
+    public static void test_break() {
+        System.out.println("*****break*****");
+        int[] numbers = {25, 26, 27, 28, 29, 30};
+        for (int x : numbers) {
+            if (x == 27) {
+                break;
+            }
+            System.out.println("x in break: " + x);
+        }
+
+    }
+
+    public static void test_continue() {
+        System.out.println("*****continue*****");
+        int[] numbers = {31, 32, 33, 34, 35};
+        for (int x : numbers) {
+            if (x == 33) {
+                continue;
+            }
+            System.out.println("x in continue: " + x);
+
+        }
+    }
+
+    public static void test_nested_for() {
+        System.out.println("*****nested for*****");
+        for (int x = 1; x <= 9; x++) {
+            for (int y = 1; y <= 9; y++) {
+                System.out.print(x + "x" + y + "=" + x * y + "\t");
+            }
+            System.out.println();
+        }
+    }
+
+    public static void main(String[] args) {
+        test_while();
+        test_do_while();
+        test_for();
+        test_enhanced_for();
+        test_break();
+        test_continue();
+        test_nested_for();
+    }
+}