Programming Tutorials

Question: Consider the following application: what value is printed at line 6?

By: Ash in Certification Tutorials on 2008-07-05  

Question: Consider the following application:

1. class Q6 {
2. public static void main(String args[]){
3. Holder h = new Holder();
4. h.held = 100;
5. h.bump(h);
6. System.out.println(h.held);
7. }
8. }
9.
10. class Holder {
11. public int held;
12. public void bump(Holder theHolder){theHolder.held++;}
13. }
What value is printed out at line 6?

A. 0.

B. 1.

C. 100.

D. 101.

Answer:D is correct. A holder is constructed on line 6. A reference to that holder is passed into method bump() on line 5. Within the method call, the holder's held variable is bumped from 100 to 101.

 

 

 

 





Add Comment

* Required information
1000

Comments

No comments yet. Be the first!

Most Viewed Articles (in Certification )

Question: What is the range of values that can be assigned to a variable of type byte?

Question: A signed data type has an equal number of non-zero positive and negative values available

Question: The File class contains a method that changes the current working directory.

Sun Certified Enterprise Architect (SCEA) certification

Getting started with Java Certification.

Question: It is possible to use the File class to list the contents of the current working directory.

Question: How can you force garbage collection of an object?

Sun Certified Business Component Developer (SCBCD) Certification

Sun Certified Developer for Java Web Services (SCDJWS) Certification

Question: Consider the following application: what value is printed at line 6?

Question: Consider the following application: what value is printed at line 6?

Sun Certified Mobile Application Developer (SCMAD) Certification

Question: What does the following code fragment print out at line 10?

Question: What is result of attempting to compile and execute the code below:

Sun Certified Java Developer (SCJD) Certification

Latest Articles (in Certification)

Sun Certified Enterprise Architect (SCEA) certification

Sun Certified Mobile Application Developer (SCMAD) Certification

Sun Certified Developer for Java Web Services (SCDJWS) Certification

Sun Certified Business Component Developer (SCBCD) Certification

Sun Certified Web Component Developer (SCWCD) Certification

Sun Certified Java Developer (SCJD) Certification

Sun Certified Java Programmer (SCJP) Certification

Sun Certified Java Associate (SCJA) Certification

Question: How many bytes does the following code write to file destfile?

Getting started with Java Certification.

Question: What is result of attempting to compile and execute the code below:

Question: Execute the following code in an empty directory. What is the result?

Question: Readers have methods that can read and return floats and doubles. True or False?

Question: Find the right solution based on the provide code.

Question: What does the following code fragment print out at line 10?