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public class Foo { private final String data1; private final String data2;   // provide a constructor that sets data1 and data2   // provide equals and hashCode that properly use data1 and data2   // provide getter methods for data1 and data2 }   ...   Foo foo1 = new Foo( "a" , "b" ); Foo foo2 = new Foo( "a" , "c" ); Bar bar1 =...

Rule #1 of Garbage Collection: forget about garbage collection. The JVM is a lot smarter than you and can handle it way better than you can. What you should be concentrating on instead is declaring your variables in the smallest available scope. So if you only need a variable inside a loop, declare it insode the loop. If you only need a variable inside a method, declare it inside the method. As soon as that cuurent block of code is finished...

HJava wrote: Sorry all, my first example work fine, right now every my servlet have the first part , I just wonder can I get the first part out become an connection object then I call this object in every my servlet , the second part is my connection object , then I try to use third part to replace my first part in my servlet , I get null. Sounds like I was right. Your 'finally' block sets it to null, so I can't see how it...

"Reset" isn't a particularly magical operation. It just means "put stuff back how it was". So the trick is to remember how things were. We're always seeing questions like "how do I reset my app?" and the answer isn't -as is expected - that there's some API call that somehow just does it. You have to maintain the initial state, and put it back in place. In your case I expect that means setting...

baudits wrote: Hello I have made some code that suppose to count how many times a and e occurs in my arraylist. The problem is that it only works if an element consist of one letter. Could anyone tell me how I can make it work? How many times does it "occur" here: words.add( "a" ); words.add( "aa" ); Two, or three? If two, use String.contains("a") instead of .equals(). You're...

Edit: removed since the OP took care of it.

HadToTakeCompProg wrote: Our teacher mentioned linked list data, but no one in our class has any idea what he's talking about. By the way, ever consider asking your teacher? Seriously, learn to interact with your teachers more effectively before you've graduated. It's for your benefit. You don't want to look back at your school days with regret.

jverd wrote: kevinaworkman wrote: That's because Integer.MIN_VALUE and Integer.MAX_VALUE aren't magically figuring out the min and max of what the user entered. I'm flabbergasted at how the OP could have thought that they did. I would bet that the teacher gave the class a hint: you can use Integer.MIN_VALUE and Integer.MAX_VALUE when figuring out the smallest and largest values entered by the user. I can see how the OP would go...

no, I have this method matchID which will validate an arguement to check if the arguement is in the arrays range. Then i go on to displaying all the objects of the array according to the section ID arguement they input, section ID A,B or C. public boolean matchID(String sectionID) { return (sectionName.indexOf(sectionID) != -1) ; } I have to call this method from a different class with an arguement. Edited by: Code_Worm on Nov 20, 2009 12:40 AM

You can jar your application and distribute with JWS (Java WebStart)