This chapter is from the book
This chapter is from the book
This chapter is from the book
This chapter is from the book
Review Questions
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13.1 |
Which is the correct way to start a new thread? Select the one correct answer.
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13.2 |
When extending the Thread class to implement the code executed by a thread, which method should be overridden? Select the one correct answer.
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13.3 |
Which statements are true? Select the two correct answers.
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13.4 |
What will be the result of attempting to compile and run the following program? public class MyClass extends Thread {
public MyClass(String s) { msg = s; }
String msg;
public void run() {
System.out.println(msg);
}
public static void main(String[] args) {
new MyClass("Hello");
new MyClass("World");
}
}
Select the one correct answer.
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13.5 |
What will be the result of attempting to compile and run the following program? class Extender extends Thread {
public Extender() { }
public Extender(Runnable runnable) {super(runnable);}
public void run() {System.out.print("|Extender|");}
}
public class Implementer implements Runnable {
public void run() {System.out.print("|Implementer|");}
public static void main(String[] args) {
new Extender(new Implementer()).start(); // (1)
new Extender().start(); // (2)
new Thread(new Implementer()).start(); // (3)
}
}
Select the one correct answer.
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13.6 |
What will be the result of attempting to compile and run the following program? class R1 implements Runnable {
public void run() {
System.out.print(Thread.currentThread().getName());
}
}
public class R2 implements Runnable {
public void run() {
new Thread(new R1(),"|R1a|").run();
new Thread(new R1(),"|R1b|").start();
System.out.print(Thread.currentThread().getName());
}
public static void main(String[] args) {
new Thread(new R2(),"|R2|").start();
}
}
Select the one correct answer.
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13.7 |
What will be the result of attempting to compile and run the following program? public class Threader extends Thread {
Threader(String name) {
super(name);
}
public void run() throws IllegalStateException {
System.out.println(Thread.currentThread().getName());
throw new IllegalStateException();
}
public static void main(String[] args) {
new Threader("|T1|").start();
}
}
Select the one correct answer.
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13.8 |
What will be the result of attempting to compile and run the following program? public class Worker extends Thread {
public void run() {
System.out.print("|work|");
}
public static void main(String[] args) {
Worker worker = new Worker();
worker.start();
worker.run();
worker.start();
}
}
Select the one correct answer.
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