What is a class in java?
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what is the use of abstract class?
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What is javac in java?
Why do we create threads in java?
When super keyword is used?
When we will use an Interface and Abstract class?
What occurs when an object is constructed?
What is memory leak and how does java handle it?
Why do we need data serialization?
If two threads have same priority which thread will be executed first ?
How do you insert a line break?
What is lazy activation?
Can a class have an interface?