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单选题
Given： 310-025 Leading the way in IT testing and certification tools， www.testking.com - 48 - public class foo { static String s； public static void main （Stringargs） { system.out.printIn （“s=” + s）； } } What is the result？（）
A
The code compiles and “s=” is printed.
B
The code compiles and “s=null” is printed.
C
The code does not compile because string s is not initialized.
D
The code does not compile because string s cannot be referenced.
E
The code compiles， but a NullPointerException is thrown when toString is called.
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单选题public class foo { public static void main （stringargs） try {return；} finally {system.out.printIn（“Finally”）；} } What is the result？（）A
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单选题public class foo { public static void main （Stringargs） { String s； system.out.printIn （“s=” + s）； } } What is the result？（）A
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单选题public class foo { static String s； public static void main （String[]args） { system.out.printIn （“s=” + s）； } } What is the result？（）A
The code compiles and “s=” is printed.B
The code compiles and “s=null” is printed.C
The code does not compile because string s is not initialized.D
The code does not compile because string s cannot be referenced.E
The code compiles， but a NullPointerException is thrown when toString is called.
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单选题interface DeclareStuff{ public static final int EASY = 3； void doStuff（int t）； } public class TestDeclare implements DeclareStuff { public static void main（String [] args） { int x=5； new TestDeclare（）.doStuff（++x）； } void doStuff（int s） { s += EASY + ++s； System.out.println（”s “ + s）； } } What is the result？（）A
s 14B
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An exception is thrown at runtime.
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填空题Public class test （ Public static void main （String args[]） （ System.out.printIn （6 ^ 3）； ） ） What is the output？（）
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单选题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？（）A
An exception is thrown.B
The code will not compile.C
The program prints “null”D
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The program prints “green”
考题
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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