JAVA Threads When a class extends the Thread class ,it should override ............ method of Thread class to start that thread. init() start() run() go() init() start() run() go() 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
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 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); }} IllegalThreadStateException is thrown Prints Prints Prints Compiler error IllegalThreadStateException is thrown Prints Prints Prints Compiler error 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); } }} A run time error indicating that no run method is defined for the Thread class A compile time error indicating that no run method is defined for the Thread class None of these Clean compile but no output at runtime Clean compile and at run time the values 0 to 9 are printed out A run time error indicating that no run method is defined for the Thread class A compile time error indicating that no run method is defined for the Thread class None of these Clean compile but no output at runtime Clean compile and at run time the values 0 to 9 are printed out 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 Compilation fails due to an error on line 7 run-test run-test Compilation fails due to an error on line 4 None of these run-test Compilation fails due to an error on line 7 run-test run-test Compilation fails due to an error on line 4 None of these ANSWER DOWNLOAD EXAMIANS APP
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