public class X extends Frame{ public static void main(String[] args){ X x=new X();x.p
A.all change height and width
B.Button Two change height and Button Three change width
C.Button One change height
D.Button Four change height and width
A.all change height and width
B.Button Two change height and Button Three change width
C.Button One change height
D.Button Four change height and width
第1题
A.-1
B.0
C.1
D.2
第2题
A.以上答案均不正确
B.xyz
C.x y z
D.12
第3题
A.以上答案均不正确
B.xyz
C.x+y+z
D.12
第4题
A.m_x、m_y和m_radius都是Circle类的成员变量
B.setCenter、setRadius和getArea都是Circle类的成员函数
C.类定义体后面的分号可以省略
D.将double m_radius;改为double m_radius=1;,则表示m_radius成员变量的初值为1
第5题
A.d.b与d.base1::b
B.d.base1::b与d.base1::b1
C.d.b与d.b3
D.d.base2::b与d.base2::b2
第6题
A. abstract class G2 extends superClass1,superClass2{…}
B. abstract public class classmates{…}
C. public final class NewClass extends superClass implements Interface1{…}
D. public abstract class String{…}
第7题
A.abstract class Cat: Animal
{
abstract public void Move();
}
B.abstract class Cat: Animal
{
virtual public void Move(){Console.Write(Console.Write("Move!");)}
}
C.abstract class Cat: Animal
{
public void Move(){Console.Write(Console.Write("Move!");)};
}
D.abstract class Cat: Animal
{
public void Eat(){Console.Write(Console.Write("Eat!");)};
}
第8题
A.compilation succeeds and 3 is printed
B.compilation succeeds and 2 is printed
C.compilation succeeds and 1 is printed
D.An error at this program cause compilation to fail
第9题
A.1,1
B.1,1.0
C.1.0,1
D.1.0,1.0
第10题
A.14
B.-14
C.-15
D.15
第11题
A.4
B.5
C.3
D.不能通过编译