JAVA Threads When a class extends the Thread class ,it should override ............ method of Thread class to start that thread. run() start() go() init() run() start() go() init() ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads Which of the following constructor of class Thread is valid one? None of these Thread(Runnable threadOb, String threadName) Thread(String threadName, int priority) Thread(int priority) Thread(Runnable threadOb, int priority) None of these Thread(Runnable threadOb, String threadName) Thread(String threadName, int priority) Thread(int priority) Thread(Runnable threadOb, int priority) 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"); }} "BeginRunEnd" is printed. "BeginEndRun" is printed. An exception is thrown at runtime. "BeginEnd" is printed. Compilation fails. "BeginRunEnd" is printed. "BeginEndRun" is printed. An exception is thrown at runtime. "BeginEnd" is printed. Compilation fails. 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. } run-test None of these Compilation fails due to an error on line 4 Compilation fails due to an error on line 7 run-test run-test run-test None of these Compilation fails due to an error on line 4 Compilation fails due to an error on line 7 run-test run-test 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 Compilation succeed but Runtime Exception A B A B A B A B None of these A A A A B B B B Output order is not guaranteed Compilation succeed but Runtime Exception A B A B A B A B None of these A A A A B B B B ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads Analyze the following code:public class Test implements Runnable{ public static void main(String[] args){ Test t = new Test(); } public Test(){ Thread t = new Thread(this); t.start(); } public void run(){ System.out.println("test"); }} The program compiles fine, but it does not run because you cannot use the keyword this in the constructor. The program compiles and runs and displays test. The program compiles and runs and displays nothing. The program has a compilation error because t is defined in both the main() method and the constructor Test(). The program compiles fine, but it does not run because you cannot use the keyword this in the constructor. The program compiles and runs and displays test. The program compiles and runs and displays nothing. The program has a compilation error because t is defined in both the main() method and the constructor Test(). ANSWER DOWNLOAD EXAMIANS APP
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