What is null mean in java?
what is the default value of a variable char?(If not assigned)
What Is Pointer?
Can an interface implement another interface?
What is a Java package and how is it used?
What is boolean logic?
Write a program to print count of empty strings in java 8?
What are the types of web technologies?
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?
What is java and their uses?
What is java full form?
What is space character in java?
Is void a data type?