Why are generics used?
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Why does java have different data types for integers and floating-point values?
How do you check if an arraylist is not empty?
why String class is immutable.
What are the special characters?
What is class level lock ?
Are constructors methods?
What is internal variable?
What is dynamic array in java?
What does it mean to flush a file?
Which characters are allowed to use as the second character of an identifier, and which characters are not allowed?
Is java ee a framework?
What is executor memory?