JAVA Threads Which keyword when applied on a method indicates that only one thread should execute the method at a time. native volatile synchronized static final native volatile synchronized static final ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads What will happen when you attempt to compile and run the following code?1. public class Test extends Thread{2. public static void main(String argv[]){3. Test t = new Test();4. t.run();5. t.start();6. }7. public void run(){8. System.out.println("run-test");9. }10. } None of these Compilation fails due to an error on line 7 run-test Compilation fails due to an error on line 4 run-test run-test None of these Compilation fails due to an error on line 7 run-test Compilation fails due to an error on line 4 run-test run-test ANSWER DOWNLOAD EXAMIANS APP
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"); }} "BeginEnd" is printed. Compilation fails. An exception is thrown at runtime. "BeginEndRun" is printed. "BeginRunEnd" is printed. "BeginEnd" is printed. Compilation fails. An exception is thrown at runtime. "BeginEndRun" is printed. "BeginRunEnd" is printed. ANSWER DOWNLOAD EXAMIANS APP
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(); }} Output order is not guaranteed None of these A B A B A B A B Compilation succeed but Runtime Exception A A A A B B B B Output order is not guaranteed None of these A B A B A B A B Compilation succeed but Runtime Exception A A A A B B B B ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads Predict the output:public class Test extends Thread{ private int i; public void run(){ i++; } public static void main(String[] args){ Test a = new Test(); a.run(); System.out.print(a.i); a.start(); System.out.print(a.i); }} IllegalThreadStateException is thrown Prints Prints Compiler error Prints IllegalThreadStateException is thrown Prints Prints Compiler error Prints ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads What notifyAll() method do? Wakes up all threads that are not waiting on this object's monitor Wakes up one threads that are waiting on this object's monitor None of these Wakes up all threads that are waiting on this object's monitor Wakes up all threads that are not waiting on this object's monitor Wakes up one threads that are waiting on this object's monitor None of these Wakes up all threads that are waiting on this object's monitor ANSWER DOWNLOAD EXAMIANS APP
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