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. }

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. }

Compilation fails due to an error on line 7

run-test run-test

None of these

run-test

Compilation fails due to an error on line 4

Compilation fails due to an error on line 7

run-test run-test

None of these

run-test

Compilation fails due to an error on line 4

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JAVA Threads
Which keyword when applied on a method indicates that only one thread should execute the method at a time.

static

volatile

synchronized

native

final

static

volatile

synchronized

native

final

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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); }}

Compiler error

IllegalThreadStateException is thrown

Prints

Compiler error

IllegalThreadStateException is thrown

Prints

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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.

None of these

The program compiles fine.

The program will not compile because it does not implement the run() method.

The program will not compile because it does not contain abstract methods.

None of these

The program compiles fine.

The program will not compile because it does not implement the run() method.

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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); } }}

Clean compile and at run time the values 0 to 9 are printed out

None of these

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

Clean compile but no output at runtime

Clean compile and at run time the values 0 to 9 are printed out

None of these

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

Clean compile but no output at runtime

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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(); }}

An exception is thrown at runtime.

"gogo" is printed

Compilation fails.

"gogogo" is printed

"go" is printed

An exception is thrown at runtime.

"gogo" is printed

Compilation fails.

"gogogo" is printed

"go" is printed

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JAVA Threads

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. }

JAVA Threads Which keyword when applied on a method indicates that only one thread should execute the method at a time.

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); }}

JAVA Threads Analyze the following code:public abstract class Test implements Runnable{ public void doSomething() { };}

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); } }}

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(); }}

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. }

JAVA Threads
Which keyword when applied on a method indicates that only one thread should execute the method at a time.

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); }}

JAVA Threads
Analyze the following code:public abstract class Test implements Runnable{ public void doSomething() { };}

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); } }}

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(); }}