diff --git a/ContactManager b/ContactManager
new file mode 160000
index 0000000..d20288b
--- /dev/null
+++ b/ContactManager
@@ -0,0 +1 @@
+Subproject commit d20288b56bde93c121122dad558cf9060423ca29
diff --git a/JavaTestMahesh/bin/com/mahesh/exceptionHandelling/ClassCast.class b/JavaTestMahesh/bin/com/mahesh/exceptionHandelling/ClassCast.class
index aa5d44b..9d9bd0e 100644
Binary files a/JavaTestMahesh/bin/com/mahesh/exceptionHandelling/ClassCast.class and b/JavaTestMahesh/bin/com/mahesh/exceptionHandelling/ClassCast.class differ
diff --git a/JavaTestMahesh/bin/com/mahesh/exceptionHandelling/Example.class b/JavaTestMahesh/bin/com/mahesh/exceptionHandelling/Example.class
index 65d78e9..e294810 100644
Binary files a/JavaTestMahesh/bin/com/mahesh/exceptionHandelling/Example.class and b/JavaTestMahesh/bin/com/mahesh/exceptionHandelling/Example.class differ
diff --git a/JavaTestMahesh/bin/com/mahesh/exceptionHandelling/ExceptionChecked.class b/JavaTestMahesh/bin/com/mahesh/exceptionHandelling/ExceptionChecked.class
index 09d46bc..9475506 100644
Binary files a/JavaTestMahesh/bin/com/mahesh/exceptionHandelling/ExceptionChecked.class and b/JavaTestMahesh/bin/com/mahesh/exceptionHandelling/ExceptionChecked.class differ
diff --git a/JavaTestMahesh/src/com/mahesh/exceptionHandelling/ClassCast.java b/JavaTestMahesh/src/com/mahesh/exceptionHandelling/ClassCast.java
index 7e4adab..d56d01c 100644
--- a/JavaTestMahesh/src/com/mahesh/exceptionHandelling/ClassCast.java
+++ b/JavaTestMahesh/src/com/mahesh/exceptionHandelling/ClassCast.java
@@ -3,7 +3,7 @@
 public class ClassCast {
 	public static void main(String[] args) {
 		try {
-			Object obj = new Integer(100);
+			Object obj = new Integer(10);
 			System.out.println((float) obj);
 		} catch (ClassCastException e) {
 			System.out.println("Check the casting");
diff --git a/JavaTestMahesh/src/com/mahesh/exceptionHandelling/Example.java b/JavaTestMahesh/src/com/mahesh/exceptionHandelling/Example.java
index dea4f1a..6a1a50b 100644
--- a/JavaTestMahesh/src/com/mahesh/exceptionHandelling/Example.java
+++ b/JavaTestMahesh/src/com/mahesh/exceptionHandelling/Example.java
@@ -12,6 +12,7 @@ public Example(String message) {
 	static {
 		/* Store the first 10 characters of the input message. */
 		subMessage = message.substring(0, 10);
+		
 	}
 
 	public String getSubMessage() {
diff --git a/JavaTestMahesh/src/com/mahesh/exceptionHandelling/ExceptionChecked.java b/JavaTestMahesh/src/com/mahesh/exceptionHandelling/ExceptionChecked.java
index 698c009..6ae07e0 100644
--- a/JavaTestMahesh/src/com/mahesh/exceptionHandelling/ExceptionChecked.java
+++ b/JavaTestMahesh/src/com/mahesh/exceptionHandelling/ExceptionChecked.java
@@ -9,17 +9,17 @@
 
 public class ExceptionChecked {
 	public static void main(String args[]) {
-		String content = "Hello Mahesh";
+		String content = "Hello Vishwa";
 		FileInputStream fis = null;
 		try {
-			fis = new FileInputStream("C:/Softgen/mahesh.txt");
+			fis = new FileInputStream("D:/java programs/vishwa.txt");
 		} catch (FileNotFoundException fnfe) {
 			System.out.println("The specified file is not "
 					+ "present at the given path");
 		}
 		int k;
 		try {
-			File file = new File("C:/Softgen/mahesh.txt");
+			File file = new File("D:/java programs/vishwa.txt");
 			// if file doesnt exists, then create it
 			if (!file.exists()) {
 				file.createNewFile();
diff --git a/JavaTestMahesh/src/com/mahesh/exceptionHandelling/VariableDemo.java b/JavaTestMahesh/src/com/mahesh/exceptionHandelling/VariableDemo.java
new file mode 100644
index 0000000..f5ef522
--- /dev/null
+++ b/JavaTestMahesh/src/com/mahesh/exceptionHandelling/VariableDemo.java
@@ -0,0 +1,28 @@
+package com.mahesh.exceptionHandelling;
+
+
+public class VariableDemo {
+	static int count = 0;
+	
+	public void increment(){
+		count++;
+	}
+	
+	static{
+		System.out.println("Static value");
+	}
+	
+	public static void main(String[] args) {
+		VariableDemo obj1 = new VariableDemo();
+		VariableDemo obj2 = new VariableDemo();
+		System.out.println("Obj1: count is = " + obj1.count);
+		System.out.println("Obj2: count is = " + obj2.count );
+		obj1.increment();
+		System.out.println("Obj2: count is = " + obj2.count );
+		obj2.increment();
+		
+		System.out.println("Obj1: count is = " + obj1.count);
+		
+	}
+
+}
diff --git a/VishwaCoreJava/bin/com/vishwa/corejava/MethodOverloading.class b/VishwaCoreJava/bin/com/vishwa/corejava/MethodOverloading.class
index 9037b1c..c46ccb0 100644
Binary files a/VishwaCoreJava/bin/com/vishwa/corejava/MethodOverloading.class and b/VishwaCoreJava/bin/com/vishwa/corejava/MethodOverloading.class differ
diff --git a/VishwaCoreJava/bin/com/vishwa/corejava/MethodOverriding.class b/VishwaCoreJava/bin/com/vishwa/corejava/MethodOverriding.class
index 124fcaf..f62d724 100644
Binary files a/VishwaCoreJava/bin/com/vishwa/corejava/MethodOverriding.class and b/VishwaCoreJava/bin/com/vishwa/corejava/MethodOverriding.class differ
diff --git a/VishwaCoreJava/bin/com/vishwa/corejava/Methods.class b/VishwaCoreJava/bin/com/vishwa/corejava/Methods.class
index eca9ada..5477dd2 100644
Binary files a/VishwaCoreJava/bin/com/vishwa/corejava/Methods.class and b/VishwaCoreJava/bin/com/vishwa/corejava/Methods.class differ
diff --git a/VishwaCoreJava/bin/com/vishwa/corejava/loops/ForLoopExample.class b/VishwaCoreJava/bin/com/vishwa/corejava/loops/ForLoopExample.class
new file mode 100644
index 0000000..b86f370
Binary files /dev/null and b/VishwaCoreJava/bin/com/vishwa/corejava/loops/ForLoopExample.class differ
diff --git a/VishwaCoreJava/bin/com/vishwa/corejava/loops/MethodTest.class b/VishwaCoreJava/bin/com/vishwa/corejava/loops/MethodTest.class
new file mode 100644
index 0000000..cdeb748
Binary files /dev/null and b/VishwaCoreJava/bin/com/vishwa/corejava/loops/MethodTest.class differ
diff --git a/VishwaCoreJava/src/com/vishwa/corejava/MethodOverloading.java b/VishwaCoreJava/src/com/vishwa/corejava/MethodOverloading.java
index 5d681d4..28ae960 100644
--- a/VishwaCoreJava/src/com/vishwa/corejava/MethodOverloading.java
+++ b/VishwaCoreJava/src/com/vishwa/corejava/MethodOverloading.java
@@ -1,5 +1,6 @@
 package com.vishwa.corejava;
 
 public class MethodOverloading {
-
+	public static void main(String[] args) {
+	}
 }
diff --git a/VishwaCoreJava/src/com/vishwa/corejava/MethodOverriding.java b/VishwaCoreJava/src/com/vishwa/corejava/MethodOverriding.java
index ed001e1..27d6d34 100644
--- a/VishwaCoreJava/src/com/vishwa/corejava/MethodOverriding.java
+++ b/VishwaCoreJava/src/com/vishwa/corejava/MethodOverriding.java
@@ -1,5 +1,7 @@
 package com.vishwa.corejava;
 
 public class MethodOverriding {
+	public static void main(String[] args) {
 
+	}
 }
diff --git a/VishwaCoreJava/src/com/vishwa/corejava/Methods.java b/VishwaCoreJava/src/com/vishwa/corejava/Methods.java
index db9a8cc..758eb91 100644
--- a/VishwaCoreJava/src/com/vishwa/corejava/Methods.java
+++ b/VishwaCoreJava/src/com/vishwa/corejava/Methods.java
@@ -5,6 +5,17 @@ public static void main(String[] args) {
 		Methods.sub(99, 55);
 		Methods obj = new Methods();
 		obj.add(12, 56);
+		double div = obj.div(12.96, 5.656);
+		float mul = multi(23f, 54.44f);
+		System.out.println(mul);
+	}
+
+	private double div(double d, double e) {
+		return d / e;
+	}
+
+	public static float multi(float f, float g) {
+		return f * g;
 	}
 
 	public void add(int x, int y) {
@@ -14,4 +25,8 @@ public void add(int x, int y) {
 	public static void sub(int x, int y) {
 		System.out.println(x - y);
 	}
+
+	private void multiply() {
+
+	}
 }
diff --git a/VishwaCoreJava/src/com/vishwa/corejava/loops/ForLoopExample.java b/VishwaCoreJava/src/com/vishwa/corejava/loops/ForLoopExample.java
new file mode 100644
index 0000000..36f4015
--- /dev/null
+++ b/VishwaCoreJava/src/com/vishwa/corejava/loops/ForLoopExample.java
@@ -0,0 +1,7 @@
+package com.vishwa.corejava.loops;
+
+public class ForLoopExample {
+	public static void main(String[] args) {
+		System.out.println();
+	}
+}
diff --git a/VishwaCoreJava/src/com/vishwa/corejava/loops/MethodTest.java b/VishwaCoreJava/src/com/vishwa/corejava/loops/MethodTest.java
new file mode 100644
index 0000000..bbfa3f4
--- /dev/null
+++ b/VishwaCoreJava/src/com/vishwa/corejava/loops/MethodTest.java
@@ -0,0 +1,27 @@
+package com.vishwa.corejava.loops;
+
+public class MethodTest {
+
+	public static void main(String[] args) {
+		int i = 5;
+		int j = 2;
+		// int k = max(i, j);
+		int x = 10;
+
+		if ((x == 10) || i <= 10)
+			System.out.println("One");
+
+		// System.out.println("The maximum between " +i + " and "+ j + " is "+
+		// k);
+	}
+	// public static int max(int num1, int num2){
+	// int result;
+	// if(num1 > num2)
+	// result = num1;
+	// else
+	// result = num2;
+	//
+	// return result;
+	// }
+
+}
diff --git a/vishwaandroid/ContactManager b/vishwaandroid/ContactManager
new file mode 160000
index 0000000..d20288b
--- /dev/null
+++ b/vishwaandroid/ContactManager
@@ -0,0 +1 @@
+Subproject commit d20288b56bde93c121122dad558cf9060423ca29