CCNA, CCNP, MCSA, CCNA Final Exam, All Answer Test Module With 100/100

I just had an interview, and I was asked to create a memory leak with Java. Needless to say I felt pretty dumb having no clue on how to even start creating one.

Until today I thought that for example: i += j; is just a shortcut for:

What are the best practices for using Java's @Override annotation and why?

If I run the following program, which parses two date strings referencing times one second apart and compares them:

I've seen examples like this: public class MaxSeconds { public static final int MAX_SECONDS = 25; }

Say I have 2 strings, String s1 = "AbBaCca"; String s2 = "bac";

Do you keep project files like Eclipse's .project, .classpath, .settings under version control (e.g. subversion)?

Does anyone know where I can get an inexpensive Java code signing certificate? Everywhere I look wants $200 to $300 per year! Unfortunately I cannot use a self-signed one, I'm trying to get rid of the scary warnings so that users will be more likely to accept my application. And as far as I know (per this question ), it has to be a code signing certificate, it cannot be a SSL certificate.

I need to configure Tomcat memory settings as part of a larger installation, so manually configuring tomcat with the configuration app after the fact is out of the question. I thought I could just throw the JVM memory settings into the JAVA_OPTS environment variable, but I'm testing that with jconsole to see if it works and it... doesn't.

Which profiler is better for general purpose profiling and heap analysis? 90% of our apps are standalone command line programs with substantial database and numeric processing. The other 10% are webapps/servlet container apps (with very little JSP and NO SCRIPLETS!). Target user would be Sr Software Engineer with 5-10 years of industry experience. We need support only for Sun JDK 5 and.

I thought I understood Java generics pretty well, but then I came across the following in java.lang

How do I set environment variables from Java? I see that I can do this for subprocesses using ProcessBuilder. I have several subprocesses to start, though, so I'd rather modify the current process's environment and let the subprocesses inherit it.

I would like to write a Java terminal application that does screen manipulation. Are there any good libraries out there that allow you to manipulate the screen like curses in the *nix/C world?

Is there an elegant way to handle exceptions that are thrown in the a finally block?

I'd like semantics similar to C# 's ref keyword.

I am teaching a web development course at a CS department, I wrote most of the final test by now, each question focus on a specific feature or a specific technology,

I am working with Java. If I hit Ctrl + Shift + F in Eclipse Helios, it will auto format my code. At a certain point, it wraps lines. I would like to increase the maximum line length. How can I do this?

I realize that to become a better programmer, you need to program! So obviously the more practice, the better you become.

I'm generating xml files that need to conform to an xsd that was given to me. What's the best way to do this?

My team is about to build a new product and we are using Hibernate/JPA as the persistence mechanism. There are other book posts on stackoverflow, but I couldn't find one that matched my needs.