Compilation fails.
An exception is thrown at runtime.
The code executes normally and prints „foo”.
The code executes normally, but nothing is printed.
第1题:
阅读下面程序 public class Test implements Runnable { public static void main(String[] args) { ______ t.start(); } public void run() { System.out.println("Hello!"); } } 程序中下画线处应填入的正确选项是
A.Test t=new Test();
B.Thread t=new Thread();
C.Thread t=new Thread(new Test());
D.Test t=new Thread();
第2题:
class MyThread extends Thread { public void run() { System.out.println(“AAA”); } public void run(Runnable r) { System.out.println(“BBB”); } public static void main(String[] args) { new Thread(new MyThread()).start(); } } What is the result?()
第3题:
通过实现Rmmable接口创建线程,请在下面横线处填写代码完成此程序。
public class ThreadTest
{
public static void main(String args [])
{
Thread testObj1 = new Thread (new Hello ());
Thread testObj2 = new Thread (new Hello ());
testObj 2.start ( );
}
}
class Hello implements Runnable
{
int j;
public void run()
{
System.out.println("Hello" + j ++);
}
}
第4题:
Which two code fragments will execute the method doStuff() in a separate thread?()
第5题:
public class Foo implements Runnable ( public void run (Thread t) { system.out.printIn(“Running.”); } public static void main (String[] args) { new thread (new Foo()).start(); } ) What is the result?()
第6题:
public class Threads3 implements Runnable { public void run() { System.out.print(”running”); } public static void main(String[] args) { Thread t = new Thread(new Threads3()); t.run(); t.run(); t.start(); } } What is the result?()
第7题:
public class Threads5 { public static void main (String[] args) { new Thread(new Runnable() { public void run() { System.out.print(”bar”); } }).start(); } } What is the result?()
第8题:
阅读下面程序 public class Test implements Runnable{ public static void main(String[]args){ _______________________________________; t. start(); } public void mR(){ System. out. println("Hello!"); }} 在程序下画线处填入正确选项是
A.Test t=flew Test()
B.Thread t=new Thread();
C.Thread t=new Thread(new Test());
D.Test t=new Thread();
第9题:
Runnable r = new Runnable() { public void run() { System.out.print(”Cat”); } }; Threadt=new Thread(r) { public void run() { System.out.print(”Dog”); } }; t.start(); What is the result?()
第10题:
现有: class Thread2 implements Runnable { void run() { System.out.print("go "); } public static void main(String [] args) { Thread2 t2 = new Thread2(); Thread t = new Thread(t2); t.start(); } } 结果为:()