假设Foo类有如下定义,设f是Foo类的一个实例,下列语句调用哪个 是错误的? public class Foo { int i; static String s; void imethod() { } static void smethod() { } }A.Foo.imethod();B.f.imethod();C.System.out.println(f.i);D.Foo.smethod()

假设Foo类有如下定义,设f是Foo类的一个实例,下列语句调用哪个 是错误的? public class Foo { int i; static String s; void imethod() { } static void smethod() { } }

A.Foo.imethod();

B.f.imethod();

C.System.out.println(f.i);

D.Foo.smethod()


参考答案和解析
A

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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

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public class Foo {  static int[] a;  static { a[0]=2; }  public static void main( String[] args) {}  }  Which exception or error will be thrown when a programmer attempts to run this code?() A、 java.lang. StackOverflowErrorB、 java.lang.IllegalStateExceptionC、 java.lang.ExceptionlnlnitializerErrorD、 java.lang.ArraylndexOutOfBoundsException

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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

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