SaiReddyC
diff --git a/‎bin/JavaSessions/LocalAndGlobalVars.class‎
947 Bytes b/‎bin/JavaSessions/LocalAndGlobalVars.class‎
947 Bytes
diff --git a/‎bin/JavaSessions/StaticAndNonStatic.class‎
1.01 KB b/‎bin/JavaSessions/StaticAndNonStatic.class‎
1.01 KB
diff --git a/‎bin/JavaSessions/WrapperClass.class‎
1.47 KB b/‎bin/JavaSessions/WrapperClass.class‎
1.47 KB
diff --git a/‎src/JavaSessions/LocalAndGlobalVars.java‎
Lines changed: 28 additions & 0 deletions b/‎src/JavaSessions/LocalAndGlobalVars.java‎
Lines changed: 28 additions & 0 deletions
diff --git a/‎src/JavaSessions/StaticAndNonStatic.java‎
Lines changed: 39 additions & 0 deletions b/‎src/JavaSessions/StaticAndNonStatic.java‎
Lines changed: 39 additions & 0 deletions
diff --git a/‎src/JavaSessions/WrapperClass.java‎
Lines changed: 40 additions & 0 deletions b/‎src/JavaSessions/WrapperClass.java‎
Lines changed: 40 additions & 0 deletions
@@ -0,0 +1,28 @@
+package JavaSessions;
+
+public class LocalAndGlobalVars {
+	
+	String name = "Tom";
+	int age = 25;
+
+	public static void main(String[] args) {
+
+		LocalAndGlobalVars obj = new LocalAndGlobalVars();
+		System.out.println(obj.name);
+		System.out.println(obj.age);
+		int k =10;
+		
+	}
+	
+	
+	public void sum(){
+		int i = 10; //local var
+		System.out.println(age);
+		//System.out.println(k);
+	}
+	
+	public void sendMail(){
+		int j = 20;
+	}
+
+}
@@ -0,0 +1,39 @@
+package JavaSessions;
+
+public class StaticAndNonStatic {
+	
+	//class vars, global vars
+	String name = "Tom";
+	static int age = 25;
+
+	public static void main(String[] args) {
+
+		//1. call non static members:
+		StaticAndNonStatic obj = new StaticAndNonStatic();
+		obj.sendMail();
+		System.out.println(obj.name);
+		
+		obj.sum();//warning
+		
+		//2. call static members
+		//a. direct calling:
+			sum();
+			System.out.println(age);
+		//b. call by class name:
+			StaticAndNonStatic.sum();
+			System.out.println(StaticAndNonStatic.age);
+		
+	}
+	
+	public void sendMail(){
+		System.out.println("send mail method");
+	}
+	
+	public static void sum(){
+		System.out.println("sum method");
+	}
+	
+	
+	
+
+}
@@ -0,0 +1,40 @@
+package JavaSessions;
+
+import java.util.ArrayList;
+
+public class WrapperClass {
+
+	public static void main(String[] args) {
+
+		//1. String to int :
+		String x = "100";
+		System.out.println(x+20);
+		
+		int i = Integer.parseInt(x); //100
+		System.out.println(i+20);
+		
+//		String h = "100A";
+//		int g = Integer.parseInt(h);
+//		System.out.println(g);//NumberFormatException: For input string: "100A
+		
+		
+		//2. String to double:
+		String y = "12.33";
+		System.out.println(y+20);
+		
+		double d = Double.parseDouble(y);
+		System.out.println(d+10.22);
+		
+		//3. int to String:
+		int k = 100;
+		System.out.println(k+20);
+		String p = String.valueOf(k); //"100"
+		System.out.println(p+20);
+		
+		
+		String tr = "your total amount is : 500";
+		
+		ArrayList<Integer> ar = new ArrayList<Integer>();
+	}
+
+}