JAVA Threads Which keyword when applied on a method indicates that only one thread should execute the method at a time. volatile synchronized static native final volatile synchronized static native final 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 succeed but runtime exception 0 1 Compilation error, class A has no start method 0 0 None of these Compilation succeed but runtime exception 0 1 Compilation error, class A has no start method ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads Which of the following are methods of the Thread class?1) yield()2) sleep(long msec)3) go()4) stop() 1 , 2 and 4 3 only None of these 1 and 3 1 , 2 and 4 3 only None of these 1 and 3 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); }} Prints Compiler error Prints Prints IllegalThreadStateException is thrown Prints Compiler error Prints Prints IllegalThreadStateException is thrown 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(); }} Compilation succeed but Runtime Exception A B A B A B A B Output order is not guaranteed A A A A B B B B None of these Compilation succeed but Runtime Exception A B A B A B A B Output order is not guaranteed A A A A B B B B None of these ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads What will be the output of the following program code?public class Test implements Runnable{ public static void main(String[] args){ Thread t = new Thread(this); t.start(); } public void run(){ System.out.println("test"); }} The program does not compile because this cannot be referenced in a static method. None of these The program compiles fine, but it does not print anything because t does not invoke the run() method The program compiles and runs fine and displays test on the console. The program does not compile because this cannot be referenced in a static method. None of these The program compiles fine, but it does not print anything because t does not invoke the run() method The program compiles and runs fine and displays test on the console. ANSWER DOWNLOAD EXAMIANS APP
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