what is the difference between System.exit() and
System.exit(1)?
what is difference between String buffer and String builder?
What is object data type?
What is difference between static class and normal class?
Which package has light weight components?
What is Collection interface?
Explain methods specific to list interface?
Explain enumeration in java?
What is the driver class?
7) Suppose there is Student class like class student { int age; string name; } We want to store these objects in a HashMap. Do we need to override any methods in Student class? If any which ones and why? what if i just override equals or just hashcode? what will be the results in both the cases?
Difference between the paint() and repaint() methods?
What is a generic data type?
What is the final access modifier in java?