What is arraylist class in java?
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when we create singleton design then we create private constructtor..so how JVM take private constructor to make object..but it's private..
Which variables are stored in heap?
What are the features of junit?
what is an object and how do you allocate memory to it?
What is the immediate superclass of Menu?
Give few difference between constructor and method?
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explain oops concepts with examples?
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How are the elements of a gridbaglayout organized?
What is the use of join method?
what is real-time example of runtime polymorphism and compile time polymorphism
Should a main method be compulsorily declared in all java classes?