[أحـمـد ظـافـر]

هذه حلـــول بعـــ ض اللابـــات , واذا فيه وقـت نضيف باقـ ي اللابــات راح تنضــاف ان شاء الله

Lab 1_1

public class Signature {

	public static void main (String [] args) {
	
	   
        System.out.println (" Signature ") ;
        System.out.println ("  ") ;
        System.out.println ("  ") ;
        System.out.println (" www.kau.edu.sa ") ;
  
        System.out.println (" THANKs :) ") ;
        
 	}

}

---

Lab 1_2

public class Book {
   
    public static void main (String []  args ); {
    
        System.out.println (" Title: Green Eggs and Ham"+ Args[0]) ;
        System.out.println (" Author: Dr. Seuss"+ Args[1]) ;
        System.out.println (" Title: " + Args[0] ) ;
        System.out.println (" Author: " + Args[1]) ;
        System.out.println (" a@hotmail.com ") ;
    }
    
}

---

Lab 2_1

public class Fahrenheit2Celcius {
    /
     * @param args the command line arguments
     */
    public static void main(String[] args) {

            double C = Double.parseDouble (args [0] ) ;
            char CelciusTemprature  = 'C' ;
            System.out.println( '\n' + "\t\t"+ "    -- convert from Celcius to Fahrenheit  === " + '\n');
            System.out.println(" CELCIUS  TEMPERATURE  WAS = "  +  C + "     °C" );
            System.out.println('\n'+" SO "+'\n');

             // to convert from Celcius to Fahrenheit use this formula ( F = ((9/8) * C + 32 ) )
            
            double F = 0.0;
            F  = ((9.0 / 5.0)* C) + 32 ;
            //F = Fahrenheit
            int V ;
            V = (int)F ; // only print the integer side .
            V = (byte)F ; // only print the integer side .
            V = (short)F ; // only print the integer side .
            long v ;
            v= (long)F;
            System.out.println(" FAHRENHEIT  TEMPERATURE  IS = "  +  F + "  °F"   );
            System.out.println(" FAHRENHEIT  TEMPERATURE  IS = "  +  V + "  °F"   );
        }
}

---

Lab 3_2

public class CongratulateStudent{
    public static void main(String [] args){
 
    char grade = args[0].charAt(0);
    switch(grade){
        case 'A' :
            System.out.println("Excellent!");
            break;
        case 'B' :
        case 'C':
            System.out.println("Well done");
            break;
        case 'D':
            System.out.println("You passed");
        case 'F':
            System.out.println("Better try again");
            break;
        default :
            System.out.println("Invalid grade");
        }
        System.out.println("Your grade is a " + grade);
    }
}

---

Lab 3_3-4

public class SummationProblem {
    public static void main(String [] args)
    {

        int n = Integer.parseInt(args [0]);
        System.out.println('\t' +"*   "+ " YOU PUT THE NUMBER IS = " + n );
        System.out.println('\t'+"*   "+ "  I WILL SUM ALL NUMBERS BETWEEN 0 AND "+n+",:-");
        long sum = 0;
        while(n > 0)
        {
        System.out.print(" "+n + " + ");
        sum += n;
        n--;
        }
        System.out.println(" =  " + sum);
        System.out.println('\t'+"*  "+" THE SUM OF ALL NUMBERS IS = " + sum);
    }
 }
        /*Other Soluation:
        public class SummationProblem
{
    public static void main(String [] args)
    {
             int n = Integer.parseInt(args[0]);
             int i=1;
             while(i <= n)
            {
                System.out.print(i + " + ");
                i++;
             }
             
             System.out.print(" =  ");

            int x = Integer.parseInt(args[0]);
            long sum = 0;
            i=0;
            while(i <= x)
            {
                sum += x;
                i++;
             }
            System.out.print(sum/2 + "  ");
     }
}
        */////

---

Lab 5_1

public class Elevator
{
	public int currentFloor;
	public int destinationFloor;
	public boolean up;
	public boolean doorsOpen;

	public void goToFloor(int floor)
	{
		System.out.println("Changing destination floor to " + floor);
		destinationFloor = floor;
		if(destinationFloor > currentFloor)
		{
			goingUp();
		}
		else if(destinationFloor < currentFloor)
		{
			goingDown();
		}
		currentFloor = destinationFloor;
	}

	public void openDoors()
	{
		System.out.println("Opening doors");
		doorsOpen = true;
	}

	public void closeDoors()
	{
		System.out.println("Closing doors");
		doorsOpen = false;
	}

	public void goingUp()
	{
		System.out.println("Going up...");
		up = true;
	}	

	public void goingDown()
	{
		System.out.println("Going down...");
		up = false;
	}
}
public class ElevatorProgram
{
	public static void main(String [] args)
	{
		Elevator elevator = new Elevator();
		elevator.currentFloor = 1;

		elevator.goToFloor(5);
		elevator.openDoors();
		elevator.closeDoors();
		elevator.goToFloor(3);
		elevator.openDoors();
		elevator.closeDoors();
		elevator.goToFloor(1);
		elevator.openDoors();

		Elevator two = new Elevator();
		two.currentFloor = 10;
		two.goToFloor(3);
		two.openDoors();
		two.closeDoors();
		two.goToFloor(22);
		two.openDoors();
	}
}

---

Lab 5_3

public class Powerball {

	int white1, white2, white3, white4, white5, red;

	public void play()
	{
		red = (int) (Math.random() * 42 + 1);

		white1 = (int) (Math.random() * 49 + 1);
		do
		{
			white2 = (int) (Math.random() * 49 + 1);
		}while(white1 == white2);

		do
		{
			white3 = (int) (Math.random() * 49 + 1);
		}while(white1 == white3 || white2 == white3);

		do
		{
			white4 = (int) (Math.random() * 49 + 1);
		}while(white1 == white4 || white2 == white4 || white3 == white4);


		do
		{
			white5 = (int) (Math.random() * 49 + 1);
		}while(white1 == white5 || white2 == white5 || white3 == white5 || white4 == white5);
	}

	public void displayResults()
	{
		System.out.println("White balls: " + white1 + " " + white2 + " " + white3 + " " + white4 + " " + white5);
		System.out.println("Red ball: " + red);
	}
}

   public class PlayLettory
{
	public static void main(String [] args)
	{
		Powerball lottery = new Powerball();
		lottery.play();
		lottery.displayResults();
	}
}