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Q.Does garbage collection guarantee that a program will not run out of memory?
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Q.What is synchronization and why is it important?
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Q.What is daemon thread and which method is used to create the daemon thread?
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Q.What are synchronized methods and synchronized statements?
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Q.If I write System.exit (0); at the end of the try block, will the finally block still execute?
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Q.If I write return at the end of the try block, will the finally block still execute?
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Q.Is it necessary that each try block must be followed by a catch block?
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Q.What is the basic difference between the 2 approaches to exception handling.
1> try catch block and
2> specifying the candidate exceptions in the throws clause?
When should you use which approach?
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Q.What are the different ways to handle exceptions?
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Q.What is the difference between error and an exception?
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Q: What is wrapper class? Explain with example? view answer
Q.What is serialization? Explain with example? view answer
Q.What one should take care of while serializing the object?
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Q. When you serialize an object, what happens to the object references included in the object?
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Q.What happens to the static fields of a class during serialization?
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Q. Objects are passed by value or by reference?
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Q. Primitive data types are passed by reference or pass by value?
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Q. What type of parameter passing does Java support?
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Q.Can a top level class be private or protected?
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Q.What is the default value of an object reference declared as an instance variable?
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Q.What is the difference between declaring a variable and defining a variable?
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Q. What are different types of inner classes?
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The members of an interface are:
1) Those members declared in the interface.
2) Those members inherited from direct superinterfaces.
3) If an interface has no direct superinterfaces, then the interface implicitly declares a public abstract member method m with signature s, return type r, and throws clause t corresponding to each public instance method m with signature s, return type r, and throws clause t declared in Object, unless a method with the same signature, same return type, and a compatible throws clause is explicitly declared by the interface. It is a compile-time error if the interface explicitly declares such a method m in the case where m is declared to be final in Object.
