单选题Given: What is the result?（）ACompilation fails.BAn exception is thrown at runtime.CThe code executes normally and prints "sleep".DThe code executes normally, but nothing is printed.

第1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？（） 

• A、 Compilation fails.
• B、 An exception is thrown at runtime.
• C、 The code executes normally and prints “bar”.
• D、 The code executes normally， but nothing prints.

第2题：

public class foo {   public static void main （stringargs）   try {return；}   finally {system.out.printIn（“Finally”）；}   }     What is the result？（）  

• A、 The program runs and prints nothing.
• B、 The program runs and prints “Finally”
• C、 The code compiles， but an exception is thrown at runtime.
• D、 The code will not compile because the catch block is missing.

第3题：

第4题：

Given  1.  public class Foo {  2.  public static void main （String [] args） }  3.  try { return；}  4.  finally { Syste.out.printIn （“Finally”）；}  5. }  6. }   What is the result（　）？

• A、 The program runs and prints nothing.
• B、 The program runs and prints “Finally”.
• C、 The code comiles. But an exception is thrown at runtime.
• D、 The code will not compile because the catch block is missing.

第5题：

public class TestOne implements Runnable {  public static void main （String[] args） throws Exception {  Thread t = new Thread（new TestOne（））；  t.start（）；  System.out.print（”Started”）；  t.join（）；  System.out.print（”Complete”）；  }  public void run（） {  for （int i= 0； i< 4； i++） {   System.out.print（i）；  }  }  }  What can be a result？（）

• A、 Compilation fails.
• B、 An exception is thrown at runtime.
• C、 The code executes and prints “StartedComplete”.
• D、 The code executes and prints “StartedComplete0123”.
• E、 The code executes and prints “Started0l23Complete”.

第6题：

1. public class A {  2. void A（） {  3. System.out.println（“Class A”）；  4. }  5. public static void main（String[] args） {  6. new A（）；  7. }  8. }  What is the result？（）  

• A、 Class A
• B、 Compilation fails.
• C、 An exception is thrown at line 2.
• D、 An exception is thrown at line 6.
• E、 The code executes with no output.

第7题：

public class foo {  public static void main （string[]args）  try {return；}  finally {system.out.printIn（“Finally”）；}  }  What is the result？（）

• A、 The program runs and prints nothing.
• B、 The program runs and prints “Finally”
• C、 The code compiles， but an exception is thrown at runtime.
• D、 The code will not compile because the catch block is missing.

第8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？（） 

• A、 Compilation fails.
• B、 An exception is thrown at runtime.
• C、 The code executes and prints “running”.
• D、 The code executes and prints “runningrunning”.
• E、 The code executes and prints “runningrunningrunning”.

第9题：

public class TestOne {  public static void main （String[] args） throws Exception {  Thread.sleep（3000）；  System.out.println（”sleep”）；  }  }  What is the result？（） 

• A、 Compilation fails.
• B、 An exception is thrown at runtime.
• C、 The code executes normally and prints “sleep”.
• D、 The code executes normally， but nothing is printed.

第10题：

public class Threads4 {  public static void main （String[] args） {  new Threads4（）.go（）；  }  public void go（） {  Runnable r = new Runnable（） { public void run（） {  System.out.print（”foo”）；  }  }；  Thread t = new Thread（r）；  t.start（）；  t.start（）；  }  }  What is the result？（） 

• A、 Compilation fails.
• B、 An exception is thrown at runtime.
• C、 The code executes normally and prints „foo”.
• D、 The code executes normally， but nothing is printed.