Foo has the value of “”
Foo has the value of null.
Foo has the value of “blue”
Foo has the value of “green”
An exception is thrown.
The code will not compile.
第1题:
A.Foohasthevalueof“”
B.Foohasthevalueofnull.
C.Foohasthevalueof“blue”
D.Foohasthevalueof“green”
E.Anexceptionisthrown.
F.Thecodewillnotcompile.
第2题:
public class Test { public static void main (String args) { string foo = “blue”; string bar = foo; foo = “green”; System.out.printIn(bar); } } What is the result?()
第3题:
A.Anexceptionisthrown.
B.Thecodewillnotcompile.
C.Theprogramprints“null”
D.Theprogramprints“blue”
E.Theprogramprints“green”
第4题:
public class X { public static void main (String[]args) { String s1 = new String (“true”); Boolean b1 = new Boolean (true); if (s2.equals(b1)) { System.out.printIn(“Equal”); } } } What is the result?()
第5题:
int index = 1; String test = new String; String foo = test[index]; What is the result?()
第6题:
public class test( public static void main(string[]args){ string foo = args [1]; string foo = args [2]; string foo = args [3]; } ) And command line invocation: Java Test red green blue What is the result?()
第7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?()
第8题:
A.Foohasthevalueof“”
B.Foohasthevalueofnull.
C.Foohasthevalueof“blue”
D.Foohasthevalueof“green”
E.Anexceptionisthrown.
F.Thecodewillnotcompile.
第9题:
Which statements concerning the relationships between the following classes are true?() class Foo { int num; Baz comp = new Baz(); } class Bar { boolean flag; } class Baz extends Foo { Bar thing = new Bar(); double limit; }
第10题:
int index = 1; boolean test = new Boolean; boolean foo= test [index]; What is the result?()