How can we create an immutable class in java?
If all the methods in abstract class are declared as abstract then what is difference between abstract class and in interface?
What are different type of access modifiers?
How java is platform independent?
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Can a class extend 2 classes in java?
What is difference between static variable and global variable?
List down the methods and interfaces of collection class in java.
What is a void return type?
Is array an object in java?
What are the difference between string, string builder, and string buffer in java?
Variable of the boolean type is automatically initialized as?
How many types of string data types are there?
What is operator overloading. Is it is supported in java?