What is the difference between double and float variables in java?
What is an argument java?
What are reference variables in java?
Why is multiple inheritance not supported in java?
Is boolean a data type in java?
How are the elements of a gridbaglayout organized?
How to sort the elements in HashMap
Which package has light weight components in java programming?
What does singleton mean in java?
After compilation of java program we'll get .class code. If it's generated in OS Windows XP will it work on OS Linux? If yes why? If no why?
We have two methods to create methods the threads. 1. Implementing runnable interface 2. Extending to thread class and overriding run method. Among these two which one is better and why? Please explain me in detail.
How we can make copy of a java object?
What causes memory leak in java?