public class Foo{ public static void main(String[] args){ int i=1; int j=i++; if((i>++j)&&(i++==j)){ i+=j; } } } 请问程序执行完以后，i和j的值分别是多少？第一个空填i的值，第二个空填j的值。

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• 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.

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• 1.public class Test {  2.public static void main （String args[]） {  3.class Foo {  4.public int i = 3；  5.}  6.Object o = （Object） new Foo（）；  7.Foo foo = （Foo）o；  8.System.out.printIn（foo. i）； 9. }  10.}   What is the result？（）  

  A .  Compilation will fail. B .  Compilation will succeed and the program will print “3” C .  Compilation will succeed but the program will throw a ClassCastException at line 6. D .  Compilation will succeed but the program will throw a ClassCastException at line 7.

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• public class Foo {  public void main （String [] args）   {  system.out.printIn（“Hello World.”）； } }  What is the result？（）  

  A .  An exception is thrown. B .  The code does no compile. C .  “Hello World.” Is printed to the terminal. D .  The program exits without printing anything.

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• 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.

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• public class Test {   public static void main （String args） {  string foo = “blue”；  string bar = foo；   foo = “green”；   System.out.printIn（bar）；   }   }   What is the result？（）  

  A .  An exception is thrown. B .  The code will not compile. C .  The program prints “null” D .  The program prints “blue” E .  The program prints “green&rdquo

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• package foo；  public class Outer {  public static class Inner {  }  }   Which statement is true？（） 

  A .  Compilation fails. B .  An instance of the Inner class can be constructed with “new Outer.Inner（）”. C .  An instance of the Inner class cannot be constructed outside of package foo. D .  An instance of the Inner class can be constructed only from within the Outer class. E .  From within the package foo， and instance of the Inner class can be constructed with “new Inner（）”.

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• package foo；  public class Outer （   public static class Inner （   ）   ）   Which statement is true？（）  

  A .  An instance of the Inner class can be constructed with “new Outer.Inner（）” B .  An instance of the inner class cannot be constructed outside of package foo. C .  An instance of the inner class can only be constructed from within the outer class. D .  From within the package bar， an instance of the inner class can be constructed with “new inner（）&rdquo

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• public class Foo {   public void main （String args） {   system.out.printIn（“Hello World.”）；   }   }   What is the result？ （） 

  A .  An exception is thrown. B .  The code does no compile. C .  “Hello World.” Is printed to the terminal. D .  The program exits without printing anything.

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• 2. public class Foo implements Runnable （  3. public void run （Thread t） {  4. system.out.printIn（“Running.”）；  5. }  6. public static void main （String[] args）  {  7. new thread （new Foo（））.start（）； 8. ）  9. ）   What is the result？（）      

  A .  An exception is thrown. B .  The program exists without printing anything. C .  An error at line 1 causes compilation to fail. D .  An error at line 6 causes the compilation to fail. E .  “Running” is printed and the program exits.

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• public class foo {   public static void main （Stringargs） {  String s；   system.out.printIn （“s=” + s）；   }   }   What is the result？（）

  A .  The code compiles and “s=” is printed. B .  The code compiles and “s=null” is printed. C .  The code does not compile because string s is not initialized. D .  The code does not compile because string s cannot be referenced. E .  The code compiles， but a NullPointerException is thrown when toString is called.

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• public class test（   public static void main（stringargs）{   string foo = args [1]；   string foo = args ；   string foo = args ；   }   ）   And command line invocation：  Java Test red green blue  What is the result？ （） 

  A .  Baz has the value of “” B .  Baz has the value of null C .  Baz has the value of “red” D .  Baz has the value of “blue” E .  Bax has the value of “green” F .  The program throws an exception.

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•  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？（）  

  A .  An exception is thrown. B .  The program exists without printing anything. C .  An error at line 1 causes compilation to fail. D .  An error at line 2 causes the compilation to fail. E .  “Running” is printed and the program exits.

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• 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？（）      

  A .  An exception is thrown. B .  The program exists without printing anything. C .  An error at line 1 causes compilation to fail. D .  An error at line 2 causes the compilation to fail. E .  “Running” is printed and the program exits.

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• class One {   public One foo（） { return this； }  }  class Two extends One {  public One foo（） { return this； }  }  class Three extends Two {   // insert method here  }  Which two methods， inserted individually， correctly complete the Three class？（）

  A .  public void foo（） { } B .  public int foo（） { return 3； } C .  public Two foo（） { return this； } D .  public One foo（） { return this； } E .  public Object foo（） { return this； }

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• public class Test {  public static void main （String [] args）  {  string foo = “blue”；  string bar = foo；  foo = “green”；  System.out.printIn（bar）；  }  }   What is the result？（）  

  A .  An exception is thrown. B .  The code will not compile. C .  The program prints “null” D .  The program prints “blue” E .  The program prints “green&rdquo

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• 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？（）  

  A .  An exception is thrown. B .  The program exists without printing anything. C .  An error at line 1 causes compilation to fail. D .  An error at line 6 causes the compilation to fail. E .  “Running” is printed and the program exits.

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• Given：  310-025   Leading the way in IT testing and certification tools， www.testking.com   - 48 -   public class foo {   static String s；   public static void main （Stringargs） {   system.out.printIn （“s=” + s）；   }   }   What is the result？（）

  A .  The code compiles and “s=” is printed. B .  The code compiles and “s=null” is printed. C .  The code does not compile because string s is not initialized. D .  The code does not compile because string s cannot be referenced. E .  The code compiles， but a NullPointerException is thrown when toString is called.

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• public class Test {   public static void main （String args） {   class Foo {   public int i = 3；  }   Object o = （Object） new Foo（）；   Foo foo = （Foo）o；   System.out.printIn（foo. i）；  }   }   What is the result？（）  

  A .  Compilation will fail. B .  Compilation will succeed and the program will print “3” C .  Compilation will succeed but the program will throw a ClassCastException at line 6. D .  Compilation will succeed but the program will throw a ClassCastException at line 7.

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• 下面代码的运行结果为：（ ）import java.io.*;import java.util.*;public class foo{public static void main (String[] args){String s;System.out.println(s= + s);}}

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• 读代码:public class Test {public static void main (String args[]) {class Foo {public int i = 3;}Object o = (Object) new Foo();Foo foo = (Foo)o;System.out.println(foo.i);}}结果是：

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• 读代码:public class foo {static String s;public static void main (String[]args) {System.out.println (“s=” + s);}}结果是：

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• 读代码:public class Test {public static void main (String [] args) {String foo = “blue”;String bar = foo;foo = “green”;System.out.println(bar);}}结果是：

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• 下列程序运行后的输出结果是_public class Foo{ public static void main（String[] args）{ String s; System.out.println（“s=” + s）; }}（）

  A．编译错误 B．s=s C．s= D．s=null

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• 下面的程序段执行结果是 public class Foo { public static void main（String[] args) { try{ return; }finally { System.out.println（"finally"); } } }

  A．编译通过，但运行时出现异常 B．程序正常运行，不输出任何结果 C．程序正常运行，并输出“finally” D．因为没有catch语句，编译错误

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• 给定以下程序段insert code public class foo {public static void main （String[] args) thro

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