Q. Which of the following methods is a method of wrapper Integer for obtaining hash code for the invoking object?

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Q. Which of these is a super class of wrappers Long, Character & Integer?

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Q. Which of these is a wrapper for simple data type char?

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Q. Which of the following is method of wrapper Integer for converting the value of an object into int?

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Q. Which of these methods is used to obtain value of invoking object as a long?

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Q. Which of these class have only one field ‘TYPE’?

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Q. Which of the following method of Process class can terminate a process?

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Q. Standard output variable ‘out’ is defined in which class?

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Q. Which of these class can encapsulate an entire executing program?

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Q. Which of the following is method of System class is used to find how long a program takes to execute?

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Q. Which of these class holds a collection of static methods and variables?

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Q. Which of these class is a superclass of all other classes?

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Q. Which of these method of Object class can generate duplicate copy of the object on which it is called?

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Q. What is the value of double consonant ‘E’ defined in Math class?

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Q. Which of these method is a rounding function of Math class?

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Q. Which of these class contains only floating point functions?

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Q. Which of these class encapsulate the runtime state of an object or an interface?

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Q. What is the value of “d” after this line of code has been executed?

double d = Math.round ( 2.5 + Math.random() );

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Q. Which of these exceptions is thrown by methods of System class?

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Q. Which of these methods initiates garbage collection?

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