JAVA Threads Analyze the following code:public abstract class Test implements Runnable{ public void doSomething() { };} The program will not compile because it does not implement the run() method. None of these The program compiles fine. The program will not compile because it does not contain abstract methods. The program will not compile because it does not implement the run() method. None of these The program compiles fine. The program will not compile because it does not contain abstract methods. ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads What will be the output?class A extends Thread{ public void run(){ for(int i=0; i<2; i++){ System.out.println(i); } }}public class Test{ public static void main(String argv[]){ Test t = new Test(); t.check(new A(){}); } public void check(A a){ a.start(); }} 0 0 None of these Compilation error, class A has no start method 0 1 Compilation succeed but runtime exception 0 0 None of these Compilation error, class A has no start method 0 1 Compilation succeed but runtime exception ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads What is the output for the below code ?public class Test extends Thread{ public static void main(String argv[]){ Test t = new Test(); t.run(); } public void start(){ for(int i = 0; i < 10; i++){ System.out.println("Value of i = " + i); } }} Clean compile and at run time the values 0 to 9 are printed out Clean compile but no output at runtime A run time error indicating that no run method is defined for the Thread class None of these A compile time error indicating that no run method is defined for the Thread class Clean compile and at run time the values 0 to 9 are printed out Clean compile but no output at runtime A run time error indicating that no run method is defined for the Thread class None of these A compile time error indicating that no run method is defined for the Thread class ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads What will happen when you attempt to compile and run the following code?class A implements Runnable{ public void run(){ System.out.println("run-A"); }}1. public class Test{2. public static void main(String argv[]){3. A a = new A();4. Thread t = new Thread(a);5. System.out.println(t.isAlive());6. t.start();7. System.out.println(t.isAlive());8. }9. } true run-A true Compilation fails due to an error on line 7 false run-A true None of these false run-A false true run-A true Compilation fails due to an error on line 7 false run-A true None of these false run-A false 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 Wakes up all threads that are waiting on this object's monitor None of these 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 Wakes up all threads that are waiting on this object's monitor None of these ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads Which keyword when applied on a method indicates that only one thread should execute the method at a time. volatile final static synchronized native volatile final static synchronized native ANSWER DOWNLOAD EXAMIANS APP
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