JAVA Threads
Which of the following constructor of class Thread is valid one?

Thread(String threadName, int priority)
Thread(Runnable threadOb, int priority)
None of these
Thread(int priority)
Thread(Runnable threadOb, String threadName)

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JAVA Threads
What will be the output after compiling and executing the following code?public class Test implements Runnable{ public static void main(String[] args) throws InterruptedException{ Thread a = new Thread(new Test()); a.start(); System.out.print("Begin"); a.join(); System.out.print("End"); } public void run(){ System.out.print("Run"); }}

"BeginEndRun" is printed.
"BeginEnd" is printed.
An exception is thrown at runtime.
Compilation fails.
"BeginRunEnd" is printed.

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JAVA Threads
Analyze the following code:public abstract class Test implements Runnable{ public void doSomething() { };}

The program compiles fine.
The program will not compile because it does not implement the run() method.
None of these
The program will not compile because it does not contain abstract methods.

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JAVA Threads
Predict the output:class A implements Runnable{ public void run(){ try{ for(int i=0;i<4;i++){ Thread.sleep(100); System.out.println(Thread.currentThread().getName()); } }catch(InterruptedException e){ } }}public class Test{ public static void main(String argv[]) throws Exception{ A a = new A(); Thread t = new Thread(a, "A"); Thread t1 = new Thread(a, "B"); t.start(); t.join(); t1.start(); }}

Compilation succeed but Runtime Exception
A B A B A B A B
A A A A B B B B
None of these
Output order is not guaranteed

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JAVA Threads
Given the code. What will be the result?public class Test implements Runnable{ public static void main(String[] args) throws InterruptedException{ Thread a = new Thread(new Test()); a.start(); System.out.print("Begin"); a.join(); System.out.print("End"); } public void run(){ System.out.print("Run"); }}

An exception is thrown at runtime.
"BeginEndRun" is printed.
"BeginEnd" is printed.
"BeginRunEnd" is printed.
Compilation fails.

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JAVA Threads
What will happen after compiling and running following code?class A implements Runnable{ public void run(){ System.out.println("run-a"); }}1. public class Test{2. public static void main(String... args){3. A a = new A();4. Thread t = new Thread(a);5. t.start();6. t.start();7. }8. }

Compilation succeed but Runtime Exception
run-a run-a
Compilation fails with an error at line 6
run-a
None of these

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