What is a default constraint?
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What is a heavyweight component?
What does the ‘static’ keyword mean? Is it possible to override private or static method in java?
Can you call a method on a null object?
What is the difference between the Reader/Writer class hierarchy and the InputStream/OutputStream class hierarchy?
Why does it take so much time to access an applet having swing components the first time?
What is lazy activation?
How do you generate random numbers in java?
What's the purpose of static methods and static variables?
why abstract class will have a constructor?
Can we extend private class in java?
When throws keyword is used?
What does substring mean?