多项选择题
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 } }
多项选择题 Whichofthefollowingfragmentsmightcauseerrors？（）
单项选择题 Whichstatementofassigningalongtypevariabletoahexadecimalvalueiscorrect？（）