can u help ?

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

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

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;

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");  

      }

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("---------");