String foo = “blue”；  Boolean[]bar = new Boolean [1]；  if （bar[0]）  {  foo = “green”；  }   What is the result？ （） A、 Foo has the value of “”B、 Foo has the value of null.C、 Foo has the value of “blue”D、 Foo has the value of “green”E、 An exception is thrown

第1题：

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”

第2题：

Which statements concerning the relationships between the following classes are true？（）   class Foo {  int num；   Baz comp = new Baz（）；   }   class Bar {  boolean flag；   }   class Baz extends Foo {   Bar thing = new Bar（）；   double limit；   }  

• A、A Bar is a Baz.
• B、A Foo has a Bar.
• C、A Baz is a Foo.
• D、A Foo is a Baz.
• E、A Baz has a Bar.

第3题：

第4题：

int index = 1；   int foo = new int ；   int bar = foo [index]；   int baz = bar + index；   What is the result？（）

• A、 Baz has the value of 0
• B、 Baz has the value of 1
• C、 Baz has the value of 2
• D、 An exception is thrown.
• E、 The code will not compile.

第5题：

Given：  8.int index = 1：  9.Boolean [] test = new boolcan [3]；  10.boolcan foo = test [index]；   What is the result（）？  

• A、 foo has the value of 0.
• B、 foo has the value of null.
• C、 foo has the value of true.
• D、 foo has the value of false.
• E、 An-exception is thrown.
• F、 The code will not compile.

第6题：

int index = 1；   String test = new String；   String foo = test[index]；  What is the result？（）

• A、  Foo has the value “”
• B、 Foo has the value null
• C、 An exception is thrown
• D、 The code will not compile

第7题：

int index = 1；   boolean test = new Boolean；   boolean foo= test [index]；  What is the result？（）

• A、 Foo has the value of 0.
• B、 Foo has the value of null.
• C、 Foo has the value of true.
• D、 Foo has the value of false.
• E、 An exception is thrown.
• F、 The code will not compile.

第8题：

public class test（  public static void main（string[]args）{  string foo = args [1]；  string foo = args [2]；  string foo = args [3]；  }  ）  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.

第9题：

String foo = “blue”；    Booleanbar = new Boolean [1]；    if （bar[0]） {    foo = “green”；    }   What is the result？（）  

• A、 Foo has the value of “”
• B、 Foo has the value of null.
• C、 Foo has the value of “blue”
• D、 Foo has the value of “green”
• E、 An exception is thrown.
• F、 The code will not compile.

第10题：

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.