Posted: October 22nd, 2022

Can u help ? | Computer Science homework help

The computer keeps data and programs in storage. There are two kinds of storage. What is the main difference between them?

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When you call a method you need to specify three items. Mention them with an example.

 

Learning Outcome(s):

Ch. (2)

Learn about variables

 

 

 

 

 

Question Three

What is wrong with the following variable declarations? If wrong, explain. If correct (nothing wrong), write “correct”.

double 1st_var = 10;

int var2;

int var3 = var2;

string name = ”var3”;

double out-put = 5

double x, y;

int import= 100;

Learning Outcome(s):

Ch. (2)

Learn about parameters and return values

 

 

 

 

 

 

Question Four

Find/Fix errors in the following code:

public new MoveTester

    {

       public static main(String[ ] args);

       {

rectangle box = new rectangle(5, 10, 20, 30);

   

box1.translate(15, 25);

  

System.out.print(“x: “)

           System.out.println(box.getx());

           System.out.println(“Expected: 20”);

  

           System.out.print(“y: “);

           System.out.println(box.getY();

           System.ou.println(“Expected: 35”);  

      }

 

 

Learning Outcome(s):

Ch. (3).

 

Understand classes and objects

 

 

 

 

Question Five

Consider class AB:

 

What is the output of  each of the following cases:

a- BA ba1 = new BA();

    System.out.println( ba1.getN());           

b – BA ba1 = new BA(2,20,”ABC”);          

     System.out.println( ba1.getN());                         

 

c-    BA ba1 = new BA(2,20,”ABC”);

        System.out.println(ba1.getN().toLowerCase());

        System.out.println(“———“);

        System.out.println(“Name: ” + ba1.getN());

        System.out.println(“Amount: ” + ba1.getA());

        //System.out.println(“Name: ” + ba1.getN());

        System.out.println(“———“);

 

 

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