Question 1: True or False: The main method is called on line 9 above. Question 2

Question

Question 1: True or False: The main method is called on line 9 above.

Question 2: On line 18 above, the name of the method that is being called is:

a) JOptionPane

b) JOptionPane.showMessageDialog

c) showMessageDialog

d) Display a dialog box on the screen.

Question 3: On line 18 above, how many actuals are sent to the method?

a) 1

b) 2

c) 3

d) 4

Question 4: True or False: Line 23 above is an example of a method call.

Question 5: On line 17, two methods are called. Which method returns first?

a) round

b) random

Question 6: True or False:

Consider the following statement:

JOptionPane.showMessageDialog(null, "Tricky Question");

showMessageDialog is a static method in the JOptionPane class.

Question 7: Which of the following (choose all that apply) can you use as resources to determine the methods that are available for you to call in a program?

a) Ask a fellow college student or colleague

b) Use the "intelli-sense" in Netbeans

c) Search the internet

d) Study the API

e) Email a Java Programmer

Question 8: True or False: When you call a method, the method can return at most 1 value.

Question 9: Consider the following code fragment:

int n;

Point p;

Color c;

c = new Color(200, 50, 128);

n = c.getRed( );

The getRed method:

a) is defined in the Point Class

b) is found in the object c

c) is defined in the Color class

d) is found in the object p

e) returns an int

Question 10: True or False: In the following statement:

c = Color.getColor("Cyan");

getColor is a static method of the Color class.

Explanation / Answer

question 1

ans . Yes its true Its a by defaul function , When you run the java file it will call the main function. It is the entry point of the program.

Quetion 2.

ans. C showMessageDialog .its method of jOptionPane class.

Question 3.

ans. c 3

actual argument sent is 3 with one null argument .

Question 4

ans

False . its a if condition its not a method call.

Question 5.

ans b random because it in the bracket so . braket expression are solved first then other.

Question 6

ans true jOptionPane has static showMessageDialog.

Question 7

ans b use intellisense netbeans

IntelliSense is a general term for a variety of code editing features including: code completion, parameter info, quick info, and member lists. IntelliSense features are sometimes called by other names such as "code completion", "content assist", and "code hinting.".

Question 8

ans False . If the method have return type void then method does not return anything.

Question 9

ans c Is defined in the Color class

Because c is the object of the color class.

Question 10

ans: true

its a static method. Because the static method can call with out creating object of its class.

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