3/17/2013

BCS1243 PP: Contoh Test 1


A.  Response to the following statements by circling either T (TRUE) or F (FALSE). [10M]

        I.            1. Java enables users to develop and deploy applications on the Internet for servers, desktop computers, and small hand-held devices.( T / F)

      II.            2. Java is one of language that support object oriented programming. ( T / F)
    IV.            3. Reserved words or keywords are words that have a specific meaning to the compiler and cannot be used for other purposes in the program. ( T / F)

4. System.out.println is one of the pre-defined methods in Java. ( T / F)


        I.            5. An identifier is a sequence of characters that consist of letters, digits, underscores (_), and dollar signs ($).( T / F)

B. Match the following Statement / Name to its description.


No
Statements

Description
        I.             
x = 1;

Constants
      II.             
int x = 1;

Addition
    III.             
double radius;

Declaring and Initializing
    IV.             
final int SIZE = 3;

Multiplication
      V.             
+

Assignment Statements
    VI.             
*

Remainder
  VII.             
%

Declaring Variables


C. Answer the following questions


         I.            What is debugging? [2 marks]




       II.            What is the difference between a constant and a variable? [2 marks]

 
D. Which of the following are invalid identifiers, why? [7 marks]

                     I.            one
                   II.            hello_there
                 III.            hello,there
                 IV.            my    Window
                   V.            JAVA
                 VI.            1234
               VII.            acct122 
E. Evaluate the following expressions: [4 marks]

                    I.            10 + 2 / 2
                  II.            3 * 3 + 3 % 2
                III.            3 + 2 / 5 + -2 * 4
                IV.            2 * (1 + -(3/4) / 2) * (2 - 6 % 3)

F. Write a java fragment for the following problems.


0.       Write a for statement to print integer 1 to 20. [example]

int I;
For (i=1; i<=10; i++)
System.out.Println(i);


I.                    Write a for statement to print integer 50 to 60. (3 marks)


II.                  Write a for statement to print the following output. (3 marks)
2               4           6             8             10


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