added assignment 1

Semester 3 (CWS-1)/Assignments/Assignment 1/Bank.java

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+//Create a bank application to perform basic operation as withdraw and deposit using object-oriented approaches.
+
+import java.util.*;
+
+public class Bank
+{
+	private long balance;
+	Bank(long b)
+	{
+		this.balance=b;
+	}
+	Bank()
+	{
+		this.balance=0;
+	}
+	private void withdraw(long n)
+	{
+		if(n<0)
+		{
+			System.out.println("Error : Withdraw Cannot be Negetive");
+			return;
+		}
+		this.balance-=n;
+		if(this.balance<0)
+		{
+			System.out.println("Error : Not Enough Balance");
+			this.balance+=n;
+		}
+		else
+		{
+			System.out.println("Withdraw : Rs. "+n+" Withdrawn");
+		}
+	}
+	private void deposit(long n)
+	{
+		if(n<0)
+		{
+			System.out.println("Error : Deposit Cannot be Negetive");
+			return;
+		}
+		this.balance+=n;
+		System.out.println("Deposit : Rs. "+n+" Deposited");
+	}
+	private void display()
+	{
+		System.out.println("Message : Your Current Balance is "+this.balance);
+	}
+	public static void main(String args[])
+	{
+		Scanner in = new Scanner(System.in);
+		System.out.print("Enter the Intial Balance : ");
+		Bank ob = new Bank(in.nextLong());
+	}
+}

Semester 3 (CWS-1)/Assignments/Assignment 1/a1q1.java

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+//Write a java program to print hello world using eclipse IDE. 
+public class a1q1
+{
+	public static void main(String args[])
+	{
+		System.out.println("Hello World");
+	}
+}

Semester 3 (CWS-1)/Assignments/Assignment 1/a1q2p3.java

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+//Write program to demonstrate the use of class, public, private, static key word of java. 
+import mypack.*;
+public class a1q2p3 extends a1q2p1
+{
+	public static void main(String args[])
+	{
+		//Different Package using Subclass
+		a1q2p3 ob = new a1q2p3();
+		ob.display();
+	}
+	void display()
+	{
+		//Not accessible
+		//System.out.println(private_Value);
+		//System.out.println(default_Value);
+
+		//Accessible
+		System.out.println(protected_Value);
+		System.out.println(public_Value);
+	}
+}

Semester 3 (CWS-1)/Assignments/Assignment 1/a1q2p4.java

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+//Write program to demonstrate the use of class, public, private, static key word of java. 
+
+import mypack.*;
+public class a1q2p4
+{
+	public static void main(String args[])
+	{
+		//Different Package
+		a1q2p1 ob = new a1q2p1();
+
+		//Not Accessible
+		//System.out.println(ob.private_Value);
+		//System.out.println(ob.protected_Value);
+		//System.out.println(ob.default_Value);
+
+		//Accessible
+		System.out.println(ob.public_Value);
+	}
+}

Semester 3 (CWS-1)/Assignments/Assignment 1/a1q3.java

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+//Write program to create a static function to check a number is prime or not. 
+
+import java.util.*;
+
+public class a1q3
+{
+	public static void main(String args[])
+	{
+		Scanner in = new Scanner(System.in);
+		System.out.print("Enter a Number : ");
+		int n=in.nextInt();
+
+		if(n%2==0 && n!=2)
+		{
+			System.out.println(n+" is non Prime");
+			System.exit(0);
+		}
+		int sqrt=(int)(Math.sqrt(n));
+		for(int i=3; i<=sqrt; i+=2)
+		{
+			if(n%i==0)
+			{
+				System.out.println(n+" is non Prime");
+				System.exit(0);
+			}
+		}
+
+		System.out.println(n+" is Prime Number");
+		System.exit(0);
+	}
+}

Semester 3 (CWS-1)/Assignments/Assignment 1/mypack/a1q2p1.java

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+//Write program to demonstrate the use of class, public, private, static key word of java. 
+
+package mypack;
+
+public class a1q2p1 {
+	public String public_Value="I am Public";
+	protected String protected_Value="I am Protected";
+	String default_Value="I am Default";
+	private String private_Value="I am Private";
+	public static void main(String args[])
+	{
+		//same class
+		a1q2p1 ob = new a1q2p1();
+		ob.method();
+	}
+	void method()
+	{
+		//Accessible
+		System.out.println(public_Value);
+		System.out.println(private_Value);
+		System.out.println(protected_Value);
+		System.out.println(default_Value);
+	}
+}

Semester 3 (CWS-1)/Assignments/Assignment 1/mypack/a1q2p2.java

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+//Write program to demonstrate the use of class, public, private, static key word of java. 
+package mypack;
+
+public class a1q2p2
+{
+	public static void main(String args[])
+	{
+		//same package different class
+		a1q2p1 ob = new a1q2p1();
+		System.out.println(ob.public_Value);
+
+		//This one is not accessible
+		//System.out.println(ob.private_Value);
+
+		//Accessible
+		System.out.println(ob.protected_Value);
+		System.out.println(ob.default_Value);
+	}
+}

Semester 3 (CWS-1)/Assignments/Assignment 1/mypack2/a1q5p1.java

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+//Write program to demonstrate the use of more than one class in a single. package. 
+
+package mypack2;
+
+public class a1q5p1
+{
+	void log(String s)
+	{
+		System.out.println("LOG : "+s);
+	}
+}

Semester 3 (CWS-1)/Assignments/Assignment 1/mypack2/a1q5p2.java

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+//Write program to demonstrate the use of more than one class in a single. package. 
+package mypack2;
+
+public class a1q5p2
+{
+	public static void main(String args[])
+	{
+		a1q5p1 ob = new a1q5p1();
+		ob.log("Hello There !!");
+	}
+}