Java Core Classes and Threads

setEnabled(String s)

setEnabled(int a)

setEnabled(ActionListener a)

setEnabled(boolean b)

none of the above

This event class is used to determine that the particular item is selected or deselected.

This event class is used to determine that the specific action is performed on an item.

This event class is used to determine that the values of the scrolling components are changed by the user.

This event class is used to determine that the particular item loses or gains the focus.

None of the above

Void clear()

Object clone()

Object remove(Object key)

String toString()

None of the above

AbsractMap

TreeMap

WeakHashMap

LinkedHashMap

None of the above

IOException

ClassNotFoundException

SQLException

All of the above

Only (1) and (2)

Set

Collection

Map

Map.Entry

None of the above

Split

StringTokenizer

Replace

Both (1) and (2)

None of the above

equals()

finalize()

toString()

wait()

getClass()

This method is used to convert the string values into integers.

This method is used to get the string representation of the number values.

This method is used to get the string values from the char array.

This method is used to split the string.

None of the above

public HashMap(int initialCapacity, float loadFactor)

public HashMap()

public HashMap(Map<!--? extends K,? extends V--> m)

both (1) and (3)

none of the above

sleep

join

start

isAlive

none of the above

object next()

void remove()

boolean hasNext()

boolean hasPrevious()

none of the above

It returns the set containing the entries in the map.

It returns the set containing the keys in the map.

It returns the set containing the values of the keys in the map.

This method is not defined in the map class.

None of the above

List

Set

SortedSet

All of the above

Only (1) and (2)

It returns the next token as a String.

It returns the next token as an Object.

It returns the number of tokens left to be parsed.

It returns true if one or more tokens remain in the string.

None of the above