What is the main advantage of passing argument by reference?
Explain different types of thread priorities ?
What is the meaning of immutable regarding string?
Is it possible to override private or static method in java?
What does the “final” keyword mean in front of a variable? A method? A class?
Why synchronization is important in java?
which method is used to know the status of the Thread?
Difference between method overloading and method overriding in java ?
why static class in java or what is use of static class in java
What is structure of java heap? What is perm gen space in heap?
What are the drawbacks of reflection?
What is bifunction in java?
Why singleton class is used in java?