单选题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?()AThe cod

题目
单选题
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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更多“单选题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 c”相关问题
  • 第1题:

    Public class test (  Public static void main (String args[])  (  System.out.printIn (6 ^ 3);  )  )   What is the output?()


    正确答案:5

  • 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.

    正确答案:B

  • 第3题:

    public class foo {  public static void main (String[]args) {  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.

    正确答案:C

  • 第4题:

    public class X {   public static void main (Stringargs) {   String s1 = new String (“true”);   Boolean b1 = new Boolean (true);   if (s2.equals(b1)) {   System.out.printIn(“Equal”);   }   }   }   What is the result? () 

    • A、 The program runs and prints nothing.
    • B、 The program runs and prints “Equal”
    • C、 An error at line 5 causes compilation to fail.
    • D、 The program runs but aborts with an exception.

    正确答案:A

  • 第5题:

    public class X {   public static void main (Stringargs) {   string s = new string (“Hello”);   modify(s);   System.out.printIn(s);   }   public static void modify (String s) {   s += “world!”;   }   }   What is the result?() 

    • A、The program runs and prints “Hello”
    • B、An error causes compilation to fail.
    • C、The program runs and prints “Hello world!”
    • D、The program runs but aborts with an exception.

    正确答案:A

  • 第6题:

    下面哪些main方法可用于程序执行()

    • A、public static void main(String[]args)
    • B、public static void main(String[]x)
    • C、public static void main(Stringargs[])
    • D、public void main(String[]args)

    正确答案:A,B,C

  • 第7题:

    单选题
    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.


    正确答案: B
    解析: 暂无解析

  • 第8题:

    单选题
    public class X {   public static void main (Stringargs) {   string s = new string (“Hello”);   modify(s);   System.out.printIn(s);   }   public static void modify (String s) {   s += “world!”;   }   }   What is the result?()
    A

    The program runs and prints “Hello”

    B

    An error causes compilation to fail.

    C

    The program runs and prints “Hello world!”

    D

    The program runs but aborts with an exception.


    正确答案: D
    解析: 暂无解析

  • 第9题:

    单选题
    public class foo {  public static void main (String[]args) {  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.


    正确答案: A
    解析: 暂无解析

  • 第10题:

    单选题
    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.


    正确答案: E
    解析: 暂无解析

  • 第11题:

    单选题
    interface DeclareStuff{  public static final int EASY = 3;  void doStuff(int t); }  public class TestDeclare implements DeclareStuff {  public static void main(String [] args) {  int x=5;  new TestDeclare().doStuff(++x);  }  void doStuff(int s) {  s += EASY + ++s;  System.out.println(”s “ + s);  }  }  What is the result?()
    A

     s 14

    B

     s 16

    C

     s 10

    D

     Compilation fails.

    E

     An exception is thrown at runtime.


    正确答案: E
    解析: 暂无解析

  • 第12题:

    单选题
    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”


    正确答案: A
    解析: 暂无解析

  • 第13题:

    interface DeclareStuff{  public static final int EASY = 3;  void doStuff(int t); }  public class TestDeclare implements DeclareStuff {  public static void main(String [] args) {  int x=5;  new TestDeclare().doStuff(++x);  }  void doStuff(int s) {  s += EASY + ++s;  System.out.println(”s “ + s);  }  }  What is the result?() 

    • A、 s 14
    • B、 s 16
    • C、 s 10
    • D、 Compilation fails.
    • E、 An exception is thrown at runtime.

    正确答案:D

  • 第14题:

    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.

    正确答案:B

  • 第15题:

    public class foo {  static String s;  public static void main (String[]args) {  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.

    正确答案:B

  • 第16题:

     public class X {   public static void main (String[]args)   {   string s = new string (“Hello”);   modify(s);   System.out.printIn(s);   }   public static void modify (String s)  {   s += “world!”;      }   }      What is the result?()    

    • A、 The program runs and prints “Hello”
    • B、 An error causes compilation to fail.
    • C、 The program runs and prints “Hello world!”
    • D、 The program runs but aborts with an exception.

    正确答案:A

  • 第17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.

    正确答案:F

  • 第18题:

    单选题
    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.


    正确答案: D
    解析: 暂无解析

  • 第19题:

    单选题
    public class X {   public static void main (Stringargs) {   String s1 = new String (“true”);   Boolean b1 = new Boolean (true);   if (s2.equals(b1)) {   System.out.printIn(“Equal”);   }   }   }   What is the result? ()
    A

     The program runs and prints nothing.

    B

     The program runs and prints “Equal”

    C

     An error at line 5 causes compilation to fail.

    D

     The program runs but aborts with an exception.


    正确答案: D
    解析: 暂无解析

  • 第20题:

    单选题
    public class X {   public static void main (String[]args)   {   string s = new string (“Hello”);   modify(s);   System.out.printIn(s);   }   public static void modify (String s)  {   s += “world!”;      }   }      What is the result?()
    A

     The program runs and prints “Hello”

    B

     An error causes compilation to fail.

    C

     The program runs and prints “Hello world!”

    D

     The program runs but aborts with an exception.


    正确答案: B
    解析: 暂无解析

  • 第21题:

    单选题
    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.


    正确答案: C
    解析: 暂无解析

  • 第22题:

    单选题
    public class foo {  static String s;  public static void main (String[]args) {  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.


    正确答案: B
    解析: 暂无解析

  • 第23题:

    填空题
    Public class test (  Public static void main (String args[])  (  System.out.printIn (6 ^ 3);  )  )   What is the output?()

    正确答案: 5
    解析: 暂无解析

  • 第24题:

    单选题
    public class Base {  public static final String FOO = “foo”;  public static void main(String[] args) {  Base b = new Base();  Sub s = new Sub();  System.out.print(Base.FOO);  System.out.print(Sub.FOO);  System.out.print(b.FOO);  System.out.print(s.FOO);  System.out.print(((Base)s).FOO);  } }  class Sub extends Base {public static final String FOO=bar;}  What is the result?()
    A

     foofoofoofoofoo

    B

     foobarfoobarbar

    C

     foobarfoofoofoo

    D

     foobarfoobarfoo

    E

     barbarbarbarbar

    F

     foofoofoobarbar

    G

     foofoofoobarfoo


    正确答案: B
    解析: 暂无解析