added - new classes

Author: mrpatel15

src/CallingMethodsInSameClass.java

@@ -0,0 +1,22 @@
+/**
+ * Created by mrugesh patel on 4/11/17.
+ */
+public class CallingMethodsInSameClass {
+    // Method definition performing a Call to another Method
+    public static void main(String[] args) {
+        Method1(); // Method being called.
+        Method2(); // Method being called.
+    }
+
+    // Method definition to call in another Method
+
+    public static void Method1() {
+        System.out.println("Hello World! Mrugesh!!");
+    }
+
+    // Method definition performing a Call to another Method
+    public static void Method2() {
+        Method1(); // Method being called.
+    }
+}
+

src/JavaInvertTriangle.java

@@ -0,0 +1,15 @@
+/**
+ * Created by mrugesh patel on 4/11/17.
+ */
+public class JavaInvertTriangle {
+    public static void main(String args[]) {
+        int num = 9;
+        while (num > 0) {
+            for (int i = 1; i <= num; i++) {
+                System.out.print(" " + num + " ");
+            }
+            System.out.print("\n");
+            num--;
+        }
+    }
+}

src/PrimeNumbers.java

@@ -0,0 +1,23 @@
+/**
+ * Created by mrugesh patel on 4/11/17.
+ */
+public class PrimeNumbers {
+    public static void main(String[] args) {
+
+        int num = 20, count;
+
+        for (int i = 1; i <= num; i++) {
+            count = 0;
+            for (int j = 2; j <= i / 2; j++) {
+                if (i % j == 0) {
+                    count++;
+                    break;
+                }
+            }
+
+            if (count == 0) {
+                System.out.println(i);
+            }
+        }
+    }
+}