多项选择题
Which are not Java primitive types?()
A. short
B. Boolean
C. unit
D. float
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相关考题
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单项选择题
1)classPerson{ 2)publicvoidprintValue(inti,intj){/*…*/} 3)publicvoidprintValue(inti){/*...*/} 4)} 5)publicclassTeacherextendsPerson{ 6)publicvoidprintValue(){/*...*/} 7)publicvoidprintValue(inti){/*...*/} 8)publicstaticvoidmain(Stringargs[]){ 9)Persont=newTeacher(); 10)t.printValue(10); 11)} 12)} Whichmethodwillthestatementonline10call?()
A. on line 2
B. on line 3
C. on line 6
D. on line 7 -
多项选择题
Whichstatementsaboutinheritancearetrue?()
A. In Java programming language only allows single inheritance.
B. In Java programming language allows a class to implement only one interface.
C. In Java programming language a class cannot extend a class and implement a interface together.
D. In Java programming language single inheritance makes code more reliable. -
多项选择题
Whicharesyntacticallyvalidstatementat//pointx?() classPerson{ privateinta; publicintchange(intm){ returnm; } } publicclassTeacherextendsPerson{ publicintb; publicstaticvoidmain(Stringarg[]){ Personp=newPerson(); Teachert=newTeacher(); inti; //pointx } }
A. i = m;
B. i = b;
C. i = p.a;
D. i = p.change(30);
E. i = t.b.
