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现有:  public class Tester {  public static void main (String[] args)  {      intx-5;  Integer xl=x;  Integer x2=x;     int x3=new Integer(5);  system..ut.print(x1.equals(x));      system..ut.print(xl==x);  system..ut.print(x2.equals(xl));      system..ut.print(x2==xl);      system..ut.print(x2==x3);  system..ut.print(x2.equals(x3));         }      }      结果为:()     

  • A、编译失败
  • B、falsefalsetruetruetruetrue
  • C、truetruetruetruetruetrue
  • D、falsefalsetruetruetruefalse
  • E、truefalsetruefalsefalsetrue
  • F、运行时异常被抛出

参考答案

更多 “ 现有:  public class Tester {  public static void main (String[] args)  {      intx-5;  Integer xl=x;  Integer x2=x;     int x3=new Integer(5);  system..ut.print(x1.equals(x));      system..ut.print(xl==x);  system..ut.print(x2.equals(xl));      system..ut.print(x2==xl);      system..ut.print(x2==x3);  system..ut.print(x2.equals(x3));         }      }      结果为:()     A、编译失败B、falsefalsetruetruetruetrueC、truetruetruetruetruetrueD、falsefalsetruetruetruefalseE、truefalsetruefalsefalsetrueF、运行时异常被抛出” 相关考题
考题 现有:publicclassTester{publicstaticvoidmain(String[]args){intx-5;Integerxl=x;Integerx2=x;intx3=newInteger(5);system..ut.print(x1.equals(x));system..ut.print(xl==x);system..ut.print(x2.equals(xl));system..ut.print(x2==xl);system..ut.print(x2==x3);system..ut.print(x2.equals(x3));}}结果为:()A.编译失败B.falsefalsetruetruetruetrueC.truetruetruetruetruetrueD.falsefalsetruetruetruefalseE.truefalsetruefalsefalsetrueF.运行时异常被抛出

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考题 下列程序段执行后,x5的结果是______。 public class ex42 { public static void main(String[] args) { int xl = 8; int x2 = 12; int x3=7; int x4; int x5; x4 = x1 > x2 ? x1 : x2+ x1; x5 = x4 > x3 ? x4 : x3; System.out.println(x5); } }A.11B.20C.10D.12

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考题 public class Test {  public static void add3 (Integer i) {  int val = i.intValue();  val += 3;  i = new Integer(val); }  public static void main(String args[]) {  Integer i = new Integer(0);  add3(i);  System.out.println(i.intValue());  }  }   What is the result? () A、 0B、 3C、 Compilation fails.D、 An exception is thrown at runtime.

考题 class Beta {  public static void main(String [] args) {  Integer x = new Integer(6) * 7;  if (x != 42) {  System.out.print("42 ");  } else if (x 〈 new Integer(44-1)) {  System.out.println("less");  } else {  System.out.print("done"); } } }  结果是什么?() A、lessB、42C、doneD、编译失败

考题 现有:  class Top  {     static int X=l;  public Top()  {  x*=3; }     }  class Middle extends Top  {      public  Middle()    {x+=l;  }  public static void main(String  []  args)  {     Middle m=new Middle();    System.out.println (x);    }     }  结果是什么?()    A、  2B、  3C、  4D、编译失败

考题 程序: class TestApp{ public static void main (String[] args){ int x=6; if (xl) System. out. println("xl"); else if (x5) System. out .println("x5"); else if (x10) System. out. println("xA、x5B、xlC、x10D、x29

考题 public static void main( String[] args ) {  Integer a = new Integer(10);  Integer b = new Integer(10);  Integer c = a;  int d = 10;  double e = 10.0;  }   Which three evaluate to true?()   A、 (a == c)B、 (d == e)C、 (b == d)D、 (a == b)E、 (b == c)F、 (d == 10.0)

考题 class ThreadExcept implements Runnable {   public void run() { throw new RuntimeException("exception "); }   public static void main(String [] args) {   new Thread(new ThreadExcept()).start();   try {   int x = Integer.parseInt(args[0]);   Thread.sleep(x);   System.out.print("main ");    } catch (Exception e) { }      }  }   和命令行:  java ThreadExcept 1000    哪一个是结果?()  A、 mainB、 编译失败C、 代码运行,但没有输出D、 main java.lang.RuntimeException:exception

考题 class Beta {   public static void main(String [] args) {   Integer x = new Integer(6) * 7;   if (x != 42) {   System.out.print("42 ");   } else if (x.equals(42)) {   System.out.print("dot = ");   } else {   System.out.print("done");   } } }   结果为:()  A、42B、doneC、dot =D、编译失败

考题 现有:  class Top  {  static int x=l;  public Top (inty)  {  x*=3;  }      }  class Middle extends Top {      public Middle()  {x+=1;  )  public  static void main (String  []  args)  {      Middle m = new Middle();      System. out .println (x);      }     }      结果为:()     A、1B、2C、3D、编译失败

考题 class Beta{   public static void main(String[] args){   Integer x=new Integer(6)*7;   if(x!=42){   System.out.print(“42”);   } else if(xSystem.out.println(“less”);   }else{   System.out.print(“done”);   }}}   结果是什么?()   A、doneB、编译失败C、运行的时候有异常抛出D、lessE、42

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考题 现有:   class ThreadExcept implements Runnable {   public void run() { throw new RuntimeException("exception "); }  public static void main(String [] args) {   new Thread(new ThreadExcept()).start();   try {   int x = Integer.parseInt(args[0]);   Thread.sleep(x);   System.out.print("main ");    } catch (Exception e) { }      }   }   和命令行:  java ThreadExcept 1000    哪一个是结果?() A、 mainB、 编译失败C、 代码运行,但没有输出D、 main java.lang.RuntimeException: exception

考题 现有:  class Number{  public static void main(String  []  aras)  {      try  {  System.out.print (Integer.parselnt ("forty"));      } catch (RuntimeException r)  {      System.out.print ("runtime");  } catch  (NumberFormatException e)  {      system..ut.print("number");      }      }      }  结果是什么?()     A、numberB、runtimeC、forty numberD、编译失败

考题 单选题现有:  public class Tester {  public static void main (String[] args)  {      intx-5;  Integer xl=x;  Integer x2=x;     int x3=new Integer(5);  system..ut.print(x1.equals(x));      system..ut.print(xl==x);  system..ut.print(x2.equals(xl));      system..ut.print(x2==xl);      system..ut.print(x2==x3);  system..ut.print(x2.equals(x3));         }      }      结果为:()A 编译失败B falsefalsetruetruetruetrueC truetruetruetruetruetrueD falsefalsetruetruetruefalseE truefalsetruefalsefalsetrueF 运行时异常被抛出

考题 多选题public static void main( String[] args ) {  Integer a = new Integer(10);  Integer b = new Integer(10);  Integer c = a;  int d = 10;  double e = 10.0;  }   Which three evaluate to true?()A(a == c)B(d == e)C(b == d)D(a == b)E(b == c)F(d == 10.0)

考题 单选题class Beta{   public static void main(String[] args){   Integer x=new Integer(6)*7;   if(x!=42){   System.out.print(“42”);   } else if(xSystem.out.println(“less”);   }else{   System.out.print(“done”);   }}}   结果是什么?()A doneB 编译失败C 运行的时候有异常抛出D lessE 42

考题 单选题程序:  class   TestApp{  public  static  void main (String[]  args){     int x=6;     if (xl)  System. out. println("xl");     else if (x5)  System. out .println("x5");     else if (xSystem. out .println( "xA x5B xlC x10D x29

考题 单选题程序: class TestApp{ public static void main (String[] args){ int x=6; if (xl) System. out. println("xl"); else if (x5) System. out .println("x5"); else if (x10) System. out. println("x A x5B xlC x10D x29

考题 单选题public class test {  public static void add3 (Integer i)  int val = i.intValue ( );  val += 3;  i = new Integer (val);  } public static void main (String args [ ] )  {  Integer  i = new Integer (0);  add3 (i);  system.out.printIn (i.intValue ( )  );  } What is the result?()A  Compilation will fail.B  The program prints “0”.C  The program prints “3”.D  Compilation will succeed but an exception will be thrown at line 3.

考题 单选题class Beta {  public static void main(String [] args) {  Integer x = new Integer(6) * 7;  if (x != 42) {  System.out.print("42 ");  } else if (x 〈 new Integer(44-1)) {  System.out.println("less");  } else {  System.out.print("done"); } } }  结果是什么?()A lessB 42C doneD 编译失败

考题 单选题现有:   class ThreadExcept implements Runnable {   public void run() { throw new RuntimeException("exception "); }   public static void main(String [] args) {   new Thread(new ThreadExcept()).start();   try {   int x = Integer.parseInt(args[0]);   Thread.sleep(x);   System.out.print("main ");  } catch (Exception e) { }  }   }   和命令行:  java ThreadExcept 1000   哪一个是结果?()A  mainB  编译失败C  代码运行,但没有输出D  main java.lang.RuntimeException: exception

考题 单选题class Beta {   public static void main(String [] args) {   Integer x = new Integer(6) * 7;   if (x != 42) {   System.out.print("42 ");   } else if (x.equals(42)) {   System.out.print("dot = ");   } else {   System.out.print("done");   } } }   结果为:()A 42B doneC dot =D 编译失败