Java Core Classes and Threads

java.lang

java.util

java.io

java.awt

none of the above

ArithmeticException

ClassNotFoundException

IllegalAccessException

NoSuchFieldException

NoSuchMethodException

start

run

join

sleep

isAlive

public Throwable getCause()

public String toString()

public void printStackTrace()

public Throwable fillInStackTrace()

all of the above

It ensures that the access to a class is denied.

It ensures that there is an attempt to create an object of an abstract class or interface.

It ensures that one thread has been interrupted by another thread.

It ensures that the particular class is not found.

None of the above

This method is a final method that returns a runtime representation of the class of this object.

This method returns a String representation of the object.

This method compares two objects for equality.

This method creates a clone of this object.

None of the above

Object first()

Object last()

Comparator comparator()

All of the above

Only (1) and (3)

boolean hasNext()

boolean hasPrevious()

Object previous()

Object next()

None of the above

Object getKey()

Object getValue()

int hashCode()

Object setValue(Object v)

None of the above

Map

AbstractMap

SortedMap

TreeMap

None of the above

HashMap()

HashMap(Map m)

HashMap(int capacity)

HashMap(int capacity, float fillRatio)

None of the above

ClassCastException

IllegalArguementException

InvalidArguementException

Both (1) and (2)

None of the above

It returns the element on the top of the stack and remove it.

It is used to push the element on the stack.

It returns true if the stack is empty, otherwise returns false.

There is no such method defined in Stack class.

None of the above

It returns the next token as a String and sets the delimiter string.

It returns the next token as a String.

It returns the next token as an Object.

Both (1) and (2)

None of the above

Dictionary

Properties

Hashtable

HashMap

None of the above