Question 1

Standard output variable 'out' is defined in which class?&#10;A)Void&#10;B)Process&#10;C)Runtime&#10;D)System

Accepted Answer

The standard output variable 'out' is defined in the System class in Java. It is used for output operations, typically printing to the console.

Question 2

Which of these packages contains all the event handling interfaces?&#10;A)java.lang&#10;B)java.awt&#10;C)java.awt.event&#10;D)java.event

Accepted Answer

java.awt.event is the package that contains all the event handling interfaces in Java, such as ActionListener, MouseListener, KeyListener, etc. These interfaces are used to handle various types of events generated by AWT components.

Question 3

Which of these keywords is not a part of exception handling?&#10;A)try&#10;B)finally&#10;C)thrown&#10;D)catch

Accepted Answer

The correct keyword for exception handling in many programming languages, such as Java, is "throw", not "thrown". "try", "finally", and "catch" are all part of the syntax used for handling exceptions.

Question 4

Which of these exceptions handles the divide by zero error?&#10;A)ArithmeticException&#10;B)MathException&#10;C)IllegalAccessException&#10;D)IllegarException

Accepted Answer

ArithmeticException is the exception that handles errors such as divide by zero in Java.

Question 5

Which of these exceptions will occur if we try to access the index of an array beyond its length?&#10;A)ArithmeticException&#10;B)ArrayException&#10;C)ArrayIndexException&#10;D)ArrayIndexOutOfBoundsException

Accepted Answer

Accessing an index beyond the length of an array in Java throws an ArrayIndexOutOfBoundsException.

Question 6

What decides thread priority?&#10;A)Process&#10;B)Process scheduler&#10;C)Thread&#10;D)Thread scheduler

Accepted Answer

The thread scheduler is responsible for deciding the priority of threads. It manages thread execution based on their priority level, allowing higher priority threads to run before lower priority ones.

Question 7

Which of the following will ensure the thread will be in running state?&#10;A)yield()&#10;B)notify()&#10;C)wait()&#10;D)Thread.killThread()

Accepted Answer

The answer of Which of the following will ensure the...

Question 8

Which of these is used to read a string from the input stream?&#10;A)get()&#10;B)getLine()&#10;C)read()&#10;D)readLine()

Accepted Answer

The answer of Which of these is used to read...

Question 9

Which of these methods can be used to output a string in an applet?&#10;A)display()&#10;B)print()&#10;C)drawString()&#10;D)tr

Accepted Answer

The answer of Which of these methods can be used...

Question 10

Which of these methods is a part of Abstract Window Toolkit (AWT) ?&#10;A)display()&#10;B)paint()&#10;C)drawString()&#10;D)tr

Accepted Answer

The answer of Which of these methods is a part...

Question 11

Which of these operators can be used to get run time information about an object?&#10;A)getInfo&#10;B)Info&#10;C)instanceof&#10;D)getinfoof

Accepted Answer

The answer of Which of these operators can be used...

Question 12

Which of these methods can be used to writing console output?&#10;A)print()&#10;B)println()&#10;C)write()&#10;D)all of the mentioned

Accepted Answer

The answer of Which of these methods can be used...

Question 13

Which of these class is used to read from a file?&#10;A)InputStream&#10;B)BufferedInputStream&#10;C)FileInputStream&#10;D)BufferedFileInputStream

Accepted Answer

The answer of Which of these class is used to...

Question 14

Which of these events is generated by scroll bar?&#10;A)ActionEvent&#10;B)KeyEvent&#10;C)WindowEvent&#10;D)AdjustmentEvent

Accepted Answer

The answer of Which of these events is generated by...

Question 15

Which of these methods can be used to obtain the command name for invoking ActionEvent object?&#10;A)getCommand()&#10;B)getActionCommand()&#10;C)getActionEvent()&#10;D)getActionEventCommand()

Accepted Answer

The answer of Which of these methods can be used...

Deck 15: Java Programming : Event Handling, Exception Handling