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单选题
class Parser extends Utils {  public static void main(String [] args) {   System.out.print(new Parser().getInt("42"));  }  int getInt(String arg) {  return Integer.parseInt(arg);  }  }  class Utils {  int getInt(String arg) throws Exception { return 42; }  }  结果为:()
A

42

B

编译失败

C

无输出结果

D

运行时异常被抛出


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更多 “单选题class Parser extends Utils {  public static void main(String [] args) {   System.out.print(new Parser().getInt("42"));  }  int getInt(String arg) {  return Integer.parseInt(arg);  }  }  class Utils {  int getInt(String arg) throws Exception { return 42; }  }  结果为:()A 42B 编译失败C 无输出结果D 运行时异常被抛出” 相关考题
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考题 现有:  class  Parser extends  Utilis  {  public static void main (String  []  args)  {  try  {  System. out.print (new  Parser ( ) .getlnt ("42")} ;     }  catch (NumberFormatException n) {  System.out .println ( "NFExc" ) ;   }     }  int getlnt (String arg)  throws NumberFormatException{    return Integer.parselnt (arg) ;     }     class Utils {  int getlnt (String arg)  {  return 42;  }    }  结果为 :()A、 NFExcB、 42C、 42NFExcD、编译失败

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考题 class Parser extends Utils {  public static void main(String [] args) {   System.out.print(new Parser().getInt("42"));  }  int getInt(String arg) {  return Integer.parseInt(arg);  }  }  class Utils {  int getInt(String arg) throws Exception { return 42; }  }  结果为:() A、42B、编译失败C、无输出结果D、运行时异常被抛出

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考题 单选题现有  class Parser extends Utils {  public static void main (String  []  args)  {  try  {  System.out.print (new Parser () .getlnt ("42"))       }  catch (Exception e) {  System.out.println ("Exc") ;  }      }  int getlnt (String arg)  throws Exception  {     return Integer.parselnt (arg) ;      }      }  class Utils {  int getlnt ()  {  return 42;  }     }  结果是什么?()A  42ExcB  ExcC  42D 编译失败

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考题 单选题定义类:      package utils;      public class Rep{  public static String twice (String s){return s+s ;}     }  再定义另一个类Demo:      //insert code here      public class Demo{  public static void main (String[]  args){      System. out .println( twice( "Hello"));      }      }  在第一行插入哪项代码,可以使程序正常编译和执行?()A import utils.*;B  import utils.Rep.*;C  import static utils.Rep.twice;D  static import utils.Rep.twice;

考题 单选题class TestA {  public void start() { System.out.println(”TestA”); }  }  public class TestB extends TestA {  public void start() { System.out.println(”TestB”); } public static void main(String[] args) {  ((TestA)new TestB()).start();  }  }  What is the result?()A  TestAB  TestBC  Compilation fails.D  An exception is thrown at runtime.

考题 单选题Given a class Repetition: 1.package utils; 2. 3.public class Repetition{ 4.public static String twice(Strings){returns+s;} 5.} and given another class Demo: 1.//insert code here2. 3.public class Demo{ 4.public static void main(String[]args){ 5.System.out.println(twice("pizza")); 6.} 7.} Which code should be inserted at line 1 of Demo.java to compile and run Demo to print“pizzapizza”?()A import utils.*;B static import utils.*;C importutils.Repetition.*;D static importutils.Repetition.*;E import utils.Repetition.twice();F import static utils.Repetition.twice;G static import utils.Repetition.twice;

考题 单选题Given a class Repetition:  1. package utils;  2.  3. public class Repetition {  4. public static String twice(String s) { return s + s; }  5. }  and given another class Demo:  1. // insert code here 2.  3. public class Demo {  4. public static void main(String[] args) {  5. System.out.println(twice(”pizza”));  6. }  7. }  Which code should be inserted at line 1 of Demo.java to compile and run Demo to print“pizzapizza”?()A  import utils.*;B  static import utils.*;C  import utils.Repetition.*;D  static import utils.Repetition. *;E  import utils.Repetition.twice();F  import static utils.Repetition.twice;G  static import utils.Repetition.twice;

考题 单选题现有:  class Parser (类)extends(继承) Utils {   public static void main(String [] args) {   System.out.print(输出打印)(new Parser().getInt("42"));  }   int getInt(String arg) {   return Integer.parseInt(arg);    }   }   class Utils {   int getInt(String arg) throws Exception { return 42; }  }   结果为:()A  42B  编译失败。C  无输出结果。D  运行时异常被抛出。

考题 单选题class Mineral {   static String shiny() { return "1"; }   }   class Granite extends Mineral {   public static void main(String [] args) {   String s = shiny() + getShiny();   s = s + super.shiny();   System.out.println(s);   }   static String getShiny() { return shiny(); }   }   结果为:()A 3B 12C 111D 编译失败