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、 foofoofoofoofooB、 foobarfoobarbarC、 foobarfoofoofooD、 foobarfoobarfooE、 barbarbarbarbarF、 foofoofoobarbarG、 foofoofoobarfoo

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

相关考题:

publicclassBase{publicstaticfinalStringFOO=foo”;publicstaticvoidmain(String[]args){Baseb=newBase();Subs=newSub();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);}}classSubextendsBase{publicstaticfinalStringFOO=bar;}Whatistheresult?()A.foofoofoofoofooB.foobarfoobarbarC.foobarfoofoofooD.foobarfoobarfooE.barbarbarbarbarF.foofoofoobarbarG.foofoofoobarfoo

阅读下列代码 public class Test { public static void main(String args[]) { String s = "Test"; switch (s) { case "Java": System.out.print("Java"); break; case "Language": System.out.print("Language"); break; case "Test": System.out.print("Test"); break; } } } 其运行结果是( )。A.JavaB.LanguageC.TestD.编译出错

下列代码的执行结果是______。 public class ex55 { public static void main(String args[] ) { String s1=new String("hello"); String s2=new String("hello"); System.out.print (s1==s2); System.out.print (","); System.out.println (s1.equals (s2)); } }A.true, falseB.true, trueC.false, trueD.false, false

以下程序调试结果为:class Base{Base(){int i = 100;System.out.print (i);}}public class Pri extends Base{static int i = 200;public static void main(String argv[]){Pri p = new Pri();System.out.print(i);}} A.编译错误B.200C.100200D.100

class One {  public One() { System.out.print(1); }  }  class Two extends One {  public Two() { System.out.print(2); }  }  class Three extends Two {  public Three() { System.out.print(3); }  }  public class Numbers{  public static void main( String[] argv) { new Three(); }  }  What is the result when this code is executed?() A、 1B、 3C、 123D、 321E、 The code rims with no output.

public class X {  public static void main(String [] args) {  try {  badMethod();  System.out.print(“A”);  }  catch (Exception ex) {  System.out.print(“C”);  }  finally {  System.out.print(“B”);  }  System.out.print(“D”);  }  public static void badMethod() {  throw new Error();  }  }  What is the result?()  A、 ABCDB、 Compilation fails.C、 C is printed before exiting with an error message.D、 BC is printed before exiting with an error message.E、 BCD is printed before exiting with an error message.

class Bird {  static void talk() { System.out.print("chirp "); }  }  class Parrot extends Bird {  static void talk() { System.out.print("hello "); }  public static void main(String [] args) {  Bird [] birds = {new Bird(), new Parrot()};  for( Bird b : birds)  b.talk();  }  }  结果为:() A、chirp chirpB、chirp helloC、hello helloD、编译失败

class Foo {  private int x;  publicFoo(intx) {this.x=x; }  public void setX( int x) { this.x = x; }  public int getX() { return x; }  }   public class Gamma {  static Foo fooBar( Foo foo) {  foo = new Foo( 100);  return foo;  }  public static void main( String[] args) {  Foo foo = new Foo( 300);  System.out.print( foo.getX() + “-“);  Foo fooFoo = fooBar( foo);  System.out.print( foo.getX() + “-“);  System.out.print( fooFoo.getX() + “-“);  foo = fooBar( fooFoo);  System.out.print( foo.getX() + “-“);  System.out.prmt( fooFoo.getX());  }  }  What is the output of this program?()A、 300-100-100-100-100B、 300-300-100-100-100C、 300-300-300-100-100D、 300-300-300-300-100

public class X {  public static void main(String [] args) {  try {  badMethod();  System.out.print(“A”); }  catch (Exception ex) {  System.out.print(“B”);  }  finally {  System.out.print(“C”);  }  System.out.print(“D”);  }   public static void badMethod() {} }  What is the result?()  A、 ACB、 BDC、 ACDD、 ABCDE、 Compilation fails.

public class Delta {  static boolean foo(char c) {  System.out.print(c);  return true;  }  public static void main( String[] argv ) {  int i =0;  for ( foo(‘A’); foo(‘B’)(i2); foo(‘C’)){  i++ ;  foo(‘D’);  }  }  }  What is the result?()  A、 ABDCBDCBB、 ABCDABCDC、 Compilation fails.D、 An exception is thrown at runtime.

class Passer {  static final int x = 5;  public static void main(String [] args) { new Passer().go(x);  System.out.print(x);  }  void go(int x) {  System.out.print(++x);  }  }  结果是什么?() A、55B、56C、65D、66

class Beverage {   Beverage() { System.out.print("beverage "); }   }   class Beer extends Beverage {   public static void main(String [] args) {   Beer b = new Beer(14);   }   public int Beer(int x) {   this();   System.out.print("beer1 ");   }   public Beer() { System.out.print("beer2 "); }  }   结果是什么?()  A、beer1 beverageB、beer2 beverageC、beverage beer1D、编译失败

public class X {  public static void main(String [] args) {  try {  badMethod();  System.out.print(“A”);  }  catch (RuntimeException ex) {  System.out.print(“B”);  }  catch (Exception ex1) {  System.out.print(“C”);  }   finally {  System.out.print(“D”);  }  System.out.print(“E”);  }  public static void badMethod() {  throw new RuntimeException();  }  }  What is the result?()  A、 BDB、 BCDC、 BDED、 BCDEE、 ABCDEF、 Compilation fails.

public class X {  public static void main(String [] args) {  try {  badMethod();  System.out.print(“A”);  }  catch (Exception ex) {  System.out.print(“B”);  }  finally {  System.out.print(“C”);  }  System.out.print(“D”);  }  public static void badMethod() {  throw new RuntimeException();  }  }  What is the result? () A、 ABB、 BCC、 ABCD、 BCDE、 Compilation fails.

class Birds {  public static void main(String [] args) {  try {  throw new Exception();  } catch (Exception e) { try {  throw new Exception();  } catch (Exception e2) { System.out.print("inner "); }  System.out.print("middle "); }  System.out.print("outer ");  }  }  结果为:()  A、innerB、inner outerC、middle outerD、inner middle outer

class Base {  Base() { System.out.print(“Base”); }  }  public class Alpha extends Base {  public static void main( String[] args ) {  new Alpha();  new Base();  }  }  What is the result?()  A、 BaseB、 BaseBaseC、 Compilation fails.D、 The code runs with no output.E、 An exception is thrown at runtime.

public class Threads4 {  public static void main (String[] args) {  new Threads4().go();  }  public void go() {  Runnable r = new Runnable() { public void run() {  System.out.print(”foo”);  }  };  Thread t = new Thread(r);  t.start();  t.start();  }  }  What is the result?() A、 Compilation fails.B、 An exception is thrown at runtime.C、 The code executes normally and prints „foo”.D、 The code executes normally, but nothing is printed.

单选题public class X {  public static void main(String [] args) {  try {  badMethod();  System.out.print(“A”);  }  catch (RuntimeException ex) {  System.out.print(“B”);  }  catch (Exception ex1) {  System.out.print(“C”);  }   finally {  System.out.print(“D”);  }  System.out.print(“E”);  }  public static void badMethod() {  throw new RuntimeException();  }  }  What is the result?()A BDB BCDC BDED BCDEE ABCDEF Compilation fails.

单选题public class Delta {  static boolean foo(char c) {  System.out.print(c);  return true;  }  public static void main( String[] argv ) {  int i =0;  for ( foo(‘A’); foo(‘B’)(i2); foo(‘C’)){  i++ ;  foo(‘D’);  }  }  }  What is the result?()A ABDCBDCBB ABCDABCDC Compilation fails.D An exception is thrown at runtime.

单选题public class X {  public static void main(String [] args) {  try {  badMethod();  System.out.print(“A”);  }  catch (Exception ex) {  System.out.print(“C”);  }  finally {  System.out.print(“B”);  }  System.out.print(“D”);  }  public static void badMethod() {  throw new Error();  }  }  What is the result?()A ABCDB Compilation fails.C C is printed before exiting with an error message.D BC is printed before exiting with an error message.E BCD is printed before exiting with an error message.

单选题class Base {  Base() { System.out.print(“Base”); }  }  public class Alpha extends Base {  public static void main( String[] args ) {  new Alpha();  new Base();  }  }  What is the result?()A BaseB BaseBaseC Compilation fails.D The code runs with no output.E An exception is thrown at runtime.

单选题public class Threads4 {  public static void main (String[] args) {  new Threads4().go();  }  public void go() {  Runnable r = new Runnable() { public void run() {  System.out.print(”foo”);  }  };  Thread t = new Thread(r);  t.start();  t.start();  }  }  What is the result?()A Compilation fails.B An exception is thrown at runtime.C The code executes normally and prints „foo”.D The code executes normally, but nothing is printed.

单选题public class X {  public static void main(String [] args) {  try {  badMethod();  System.out.print(“A”);  }  catch (Exception ex) {  System.out.print(“B”);  }  finally {  System.out.print(“C”);  }  System.out.print(“D”);  }  public static void badMethod() {  throw new RuntimeException();  }  }  What is the result? ()A ABB BCC ABCD BCDE Compilation fails.

单选题下列程序的运行结果是(  )。class Shape{ public Shape(){ System.out.print("Shape"); }}class Circle extends Shape{ public Circle(){ System.out.print("Circle"); }}public class Test{ public static void main(String[]args){ Shape d=new Circle(); }}AShapeBCircleCShapeCircleD程序有错误

单选题public class X {  public static void main(String [] args) {  try {  badMethod();  System.out.print(“A”); }  catch (Exception ex) {  System.out.print(“B”);  }  finally {  System.out.print(“C”);  }  System.out.print(“D”);  }   public static void badMethod() {} }  What is the result?()A ACB BDC ACDD ABCDE Compilation fails.

单选题class Passer {  static final int x = 5;  public static void main(String [] args) { new Passer().go(x);  System.out.print(x);  }  void go(int x) {  System.out.print(++x);  }  }  结果是什么?()A55B56C65D66

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 foofoofoofoofooB foobarfoobarbarC foobarfoofoofooD foobarfoobarfooE barbarbarbarbarF foofoofoobarbarG foofoofoobarfoo