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?
When you call a method you need to specify three items. Mention them with an example.
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Learning Outcome(s): Ch. (2) Learn about variables
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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;
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Learning Outcome(s): Ch. (2) Learn about parameters and return values
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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”);
}
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Learning Outcome(s): Ch. (3).
Understand classes and objects
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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(“———“);