What is a lock or purpose of locks in java?
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Is char a method in java?
What do you mean by buffering?
Ducking is automatic in checked exception?True or false
why there are multiple catches for a try block.don't tell me that there can be multiple exception of a code segment that's why.tell me the real fact behind this.
How do I remove a character from a string in java?
Where will it be used?
Every class extends object but why it is not possible for every object to invoke clone() method. ideally protected methods should be accessible from sub classes. isn't it?
How does singleton class work?
How many types of string data types are there?
Why is logger singleton?
What are the java ide’s?
What is the purpose of the system class in java?