What is internal variable?
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What is the constructor?
Is java free for businesses?
Why can't we use static class instead of singleton?
Explain creating threads by extending thread class ?
Explain runtime exceptions?
Can we start a thread twice in java?
What is a numeric string?
What is jit compiler ?
When to use runnable interface vs thread class in java?
List some java keywords sun like c, c + + keywords?
what is the constructor and how many types of constructors are used in java?
When should you use arraylist and when should you use linkedlist?