单项选择题
abstract class abstrctIt {
abstract float getFloat （）；
}
public class AbstractTest extends AbstractIt {
private float f1= 1.0f；
private float getFloat （） {return f1；}
}
What is the result？（）
A. Compilation is successful.
B. An error on line 6 causes a runtime failure.
C. An error at line 6 causes compilation to fail.
D. An error at line 2 causes compilation to fail.
相关考题
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单项选择题
Youwantsubclassesinanypackagetohaveaccesstomembersofasuperclass.Whichisthemostrestrictiveaccessmodifierthatwillaccomplishthisobjective？（）
A. Public
B. Private
C. Protected
D. Transient
E. No access modifier is qualified. -
单项选择题
Whichwilldeclareamethodthatforcesasubclasstoimplementit？（）
A. Public double methoda（）；
B. Static void methoda （double d1） {}
C. Public native double methoda（）；
D. Abstract public void methoda（）；
E. Protected void methoda （double d1）{} -
单项选择题
public class foo { public static void main （String[]args） { String s； 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.
