Is singleton class thread safe?
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Is set ordered in java?
Can i have abstract class with no abstract methods?
Explain break statement and continue statement?
What are the library functions in java?
Why vector class is used?
What is an array in java?
What is entry in java?
What is complexity in java?
What are the main features of java?
how can you catch multiple exceptions in java?
What is a variable analysis?
Can you have two constructors in java?