1.IN CASE OF DYNAMIC METHOD DISPATCH WHY WE USE REFERENCE VARIABLE,WE CAN USE THE DIFFERENT DEFINED OBJECT DIRECTLY TO ACCESS THE DATA MEMBER AND MEMBER FUNCTION OF THAT RESPECTIVE CLASS?WHAT IS THE MAIN FUNCTION OF "REFERENCE VARIABLE" HERE?

4858

When a thread is executing synchronized methods , then is it possible to execute other synchronized methods simultaneously by other threads?

1025

What is a final class in java?

978

Is array size fixed in java?

934

What does g mean in regex?

957

Explain the differences between abstraction and encapsulation?

1014

What is a bufferedreader?

1028

What is a arraylist in java?

1016

What does the “static” keyword mean? Can you override private or static method in java?

1055

Can we have any other return type than void for main method?

915

How do you insert a line break?

869

How do you write a good declaration?

927

What does it mean that strings are immutable?

1088

write a program that list all permutations of ABCDEF in which A appears before B?

2446

Why singleton is not thread safe?

960