Q. What is true about Class.getInstance()?

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Q. What is true about constructor?

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Q. Abstract class cannot have a constructor.

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Q. What is true about protected constructor?

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Q. What is not the use of “this” keyword in Java?

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Q. What would be the behaviour if one parameterized constructor is explicitly defined?

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Q. What would be behaviour if the constructor has a return type?

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Q. Which of the following has the highest memory requirement?

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Q. Where is a new object allocated memory?

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Q. Which of the following is a garbage collection technique?

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Q. What is -Xms and -Xmx while starting jvm?

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Q. Which exception is thrown when java is out of memory?

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Q. How to get prints of shared object memory maps or heap memory maps for a given process?

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Q. What happens to the thread when garbage collection kicks off?

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Q. Which of the below is not a Java Profiler?

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Q. Which of the below is not a memory leak solution?

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Q. Garbage Collection can be controlled by a program?

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Q. What is the process of defining two or more methods within same class that have same name but different parameters declaration?

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Q. Which of these can be overloaded?

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Q. Which of these is correct about passing an argument by call-by-value process?

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