Que- Which of these method is used to implement Runnable interface?
a. stop()
b. run()
c. runThread()
d. stopThread()
Answer- run()
Que- Which of these method is used to begin the execution of a thread?
a. run()
b. start()
c. runThread()
d. startThread()
Answer- start()
Que- Which of these statement is incorrect?
a. A thread can be formed by implementing Runnable interface only
b. A thread can be formed by a class that extends Thread class
c. start() method is used to begin execution of the thread
d. run() method is used to begin execution of a thread before start() method in special cases
Answer- run() method is used to begin execution of a thread before start() method in special cases
Que- Which of these method of Thread class is used to find out the priority given to a thread?
a. get()
b. ThreadPriority()
c. getPriority()
d. getThreadPriority()
Answer- getPriority()
Que- Which of these method of Thread class is used to Suspend a thread for a period of time?
a. sleep()
b. terminate()
c. suspend()
d. stop()
Answer- sleep()
Que- Which function of pre defined class Thread is used to check weather current thread being checked is still running?
a. isAlive()
b. Join()
c. isRunning()
d. Alive()
Answer- isAlive()
Que- Which of these keywords are used to implement synchronization?
a. synchronize
b. syn
c. synch
d. synchronized
Answer- synchronized
Que- Which of this method is used to avoid polling in Java?
a. wait()
b. notify()
c. notifyAll()
d. all of the mentioned
Answer- all of the mentioned
Que- Which of these method is used to tell the calling thread to give up a monitor and go to sleep until some other thread enters the same monitor?
a. wait()
b. notify()
c. notifyAll()
d. sleep()
Answer- wait()
Que- Which of these method wakes up the first thread that called wait()?
a. wake()
b. notify()
c. start()
d. notifyAll()
Answer- notify()
Que- Which of these method wakes up all the threads?
a. wakeAll()
b. notify()
c. start()
d. notifyAll()
Answer- notifyAll()
Que- What is synchronization in reference to a thread?
a. It's a process of handling situations when two or more threads need access to a shared resource
b. It's a process by which many thread are able to access same shared resource simultaneously
c. It's a process by which a method is able to access many different threads simultaneously
d. It's a method that allow too many threads to access any information the require
Answer- It's a process of handling situations when two or more threads need access to a shared resource
Que- What does AWT stands for?
a. All Window Tools
b. All Writing Tools
c. Abstract Window Toolkit
d. Abstract Writing Toolkit
Answer- Abstract Window Toolkit
Que- Which of these is used to perform all input & output operations in Java?
a. streams
b. Variables
c. classes
d. Methods
Answer- streams
Que- Which of these is a type of stream in Java?
a. Integer stream
b. Short stream
c. Byte stream
d. Long stream
Answer- Byte stream
Que- Which of these classes are used by Byte streams for input and output operation?
a. InputStream
b. InputOutputStream
c. Reader
d. All of the mentioned
Answer- InputStream
Que- Which of these classes are used by character streams for input and output operations?
a. InputStream
b. Writer
c. ReadStream
d. InputOutputStream
Answer- Writer
Que- Which of these class is used to read from byte array?
a. InputStream
b. BufferedInputStream
c. ArrayInputStream
d. ByteArrayInputStream
Answer- ByteArrayInputStream
Que- Which exception is thrown by read() method?
a. IOException
b. InterruptedException
c. SystemException
d. SystemInputException
Answer- IOException
Que- Which of these is used to read a string from the input stream?
a. get()
b. getLine()
c. read()
d. readLine()
Answer- read()
Que- Which of these class is used to read characters and strings in Java from console?
a. BufferedReader
b. StringReader
c. BufferedStreamReader
d. InputStreamReader
Answer- BufferedReader
Que- Which of these class is implemented by FilterInputStream class?
a. InputStream
b. InputOutputStream
c. BufferedInputStream
d. SequenceInputStream
Answer- InputStream