Can we extend immutable class?
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Can we declare a class as abstract without having any abstract method?
What is a numeric literal?
How can I right-justify a string?
Is alive method in java?
String is mutable or immutable?
What are the different types of java?
How does a for loop work java?
what is use of threads how many ways to create thread
What are the different http methods?
Can a abstract class be declared final?
Does collectionutils isempty check for null?
What are the types of inner classes (non-static nested class) used in java?