单选题Given: What is the result?()A HelloB Hello WorldC Compilation fails.D Hello World 5E The code runs with no output.F An exception is thrown at runtime.

题目
单选题
Given: What is the result?()
A

Hello

B

Hello World

C

Compilation fails.

D

Hello World 5

E

The code runs with no output.

F

An exception is thrown at runtime.

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相似问题和答案

第1题:

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.

正确答案:A

第2题:

public class Alpha{  public static void main( string[] args ){  if ( args.length == 2 ) {  if ( args.[0].equalsIgnoreCase(“-b”) )  System.out.println( new Boolean( args[1] ));  }  }  }   And the code is invoked by using the command: java Alpha –b TRUE   What is the result?()  

  • A、 true
  • B、 null
  • C、 false
  • D、 Compilation fails.
  • E、 The code runs with no output.
  • F、 An exception is thrown at runtime.

正确答案:A

第3题:

public class ClassA{public int getValue(){int value=0;boolean setting=true;String title=&q

public class ClassA{public int getValue(){int value=0;boolean setting=true;String title="Hello";if(value||(setting && title=="Hello")){return 1;}if(value==1&title.equals("Hello")){return 2;}}}And:ClassA a=new ClassA();a.getValue();What is the result?()

A.1

B.2

C.Compilation fails.

D.The code runs with no output.

E.An exception is thrown at runtime.


参考答案:C

第4题:

String a = null;  a.concat(“abc”);  a.concat(“def”);  System.out.println(a);   What is the result?()  

  • A、 abc
  • B、 null
  • C、 abcdef
  • D、 Compilation fails.
  • E、 The code runs with no output.
  • F、 An exception is thrown at runtime.

正确答案:F

第5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6题:

public class Foo {  public void main( String[] args ) {  System.out.println( “Hello” + args[0] );  }  }   What is the result if this code is executed with the command line?()

  • A、 Hello
  • B、 Hello Foo
  • C、 Hello world
  • D、 Compilation fails.
  • E、 The code does not run.

正确答案:E

第7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?() 

  • A、 Cat
  • B、 Dog
  • C、 Compilation fails.
  • D、 The code runs with no output.
  • E、 An exception is thrown at runtime.

正确答案:B

第8题:

Click the Exhibit button. Given: ClassA a = new ClassA(); a.methodA(); What is the result? ()

A.Compilation fails.

B.ClassC is displayed.

C.The code runs with no output.

D.An exception is thrown at runtime.


参考答案:D

第9题:

10. public class Hello {  11. String title;  12. int value;  13. public Hello() {  14. title += “ World”;  15. }  16. public Hello(int value) {  17. this.value = value;  18. title = “Hello”;  19. Hello();  20. }  21. }  and:  30. Hello c = new Hello(5);  31. System.out.println(c.title);  What is the result?() 

  • A、 Hello
  • B、 Hello World
  • C、 Compilation fails.
  • D、 Hello World 5
  • E、 The code runs with no output.
  • F、 An exception is thrown at runtime.

正确答案:C

第10题:

public class ClassA {  public int getValue() {  int value=0;  boolean setting = true;  String title=”Hello”;  (value || (setting && title == “Hello”)) { return 1; }  (value == 1 & title.equals(”Hello”)) { return 2; }  }  } And:  ClassA a = new ClassA();  a.getValue();  What is the result?() 

  • A、 1
  • B、 2
  • C、 Compilation fails.
  • D、 The code runs with no output.
  • E、 An exception is thrown at runtime.

正确答案:C

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