JAVA Threads When a class extends the Thread class ,it should override ............ method of Thread class to start that thread. init() go() run() start() init() go() run() start() 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. } None of these false run-A true true run-A true false run-A false Compilation fails due to an error on line 7 None of these false run-A true true run-A true false run-A false Compilation fails due to an error on line 7 ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads Analyze the following code:public abstract class Test implements Runnable{ public void doSomething() { };} 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. The program will not compile because it does not implement the run() method. None of these The program compiles fine. ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads What is the output for the below code ?class A implements Runnable{ public void run(){ System.out.println(Thread.currentThread().getName()); }}1. public class Test{2. public static void main(String... args){3. A a = new A();4. Thread t = new Thread(a);5. t.setName("good");6. t.start();7. }8. } Compilation fails with an error at line 5 None of these null good Compilation succeed but Runtime Exception Compilation fails with an error at line 5 None of these null good Compilation succeed but Runtime Exception ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads What will be output of the following program code?public class Test implements Runnable{ public void run(){ System.out.print("go"); } public static void main(String arg[]) { Thread t = new Thread(new Test()); t.run(); t.run(); t.start(); }} "gogogo" is printed "go" is printed Compilation fails. An exception is thrown at runtime. "gogo" is printed "gogogo" is printed "go" is printed Compilation fails. An exception is thrown at runtime. "gogo" 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(); }} Compilation succeed but Runtime Exception Output order is not guaranteed A A A A B B B B A B A B A B A B None of these Compilation succeed but Runtime Exception Output order is not guaranteed A A A A B B B B A B A B A B A B None of these ANSWER DOWNLOAD EXAMIANS APP
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