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 IllegalThreadStateException is thrown Compiler error Prints Prints Prints IllegalThreadStateException is thrown Compiler error Prints Prints 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(); }} Compilation error, class A has no start method 0 1 None of these Compilation succeed but runtime exception 0 0 Compilation error, class A has no start method 0 1 None of these Compilation succeed but runtime exception 0 0 ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads When a class extends the Thread class ,it should override ............ method of Thread class to start that thread. go() init() start() run() go() init() start() run() 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. } false run-A true false run-A false true run-A true None of these Compilation fails due to an error on line 7 false run-A true false run-A false true run-A true None of these Compilation fails due to an error on line 7 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 and runs and displays test. 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 nothing. The program compiles and runs and displays test. 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 nothing. ANSWER DOWNLOAD EXAMIANS APP
JAVA Threads What will happen after compiling and running following code?class A implements Runnable{ public void run(){ System.out.println("run-a"); }}1. public class Test{2. public static void main(String... args){3. A a = new A();4. Thread t = new Thread(a);5. t.start();6. t.start();7. }8. } Compilation fails with an error at line 6 run-a run-a Compilation succeed but Runtime Exception run-a None of these Compilation fails with an error at line 6 run-a run-a Compilation succeed but Runtime Exception run-a None of these ANSWER DOWNLOAD EXAMIANS APP
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