public class student{private String name;}public class boy student extends student{}pu
A、正确
B、错误,Java不允许多重继承
C、错误boy和girl应该用
D、隔开
E、错误,应该使用implements关键字
A、正确
B、错误,Java不允许多重继承
C、错误boy和girl应该用
D、隔开
E、错误,应该使用implements关键字
第2题
A.<jsp:useBeanid="student" class="Student" scope="session"></jsp:useBean>?xml:namespace>
B.<jsp:useBeanid="student" class="Student" scope="session">hello student!</jsp:useBean>
C.<jsp:useBeanid="student" class="bean.Student" scope="session">hello student!</jsp:useBean>
D.<jsp:getProperty name="name" property="student"/>?xml:namespace>
第3题
A.继承关系
B.无关系
C.包含关系
D.关联关系
第4题
B.class derived::student public{//……}
C.class derived::private student{//……}
D.class derived::public student{//……}
第5题
A.package t;public class A{}
B.import java.io.*;package t;public class A{}
C.import java.io.*;import java.awt.*;public class A{}
D.import java.io.*;class A{}public class B{}
第6题
A.public class J_Class { public J_Class(void) { } }
B.public c lass J _Class { }
C.public class J_Class { public J_Class(String s) { } }
D.public class J_Class { public void J_Class() { } public J_Class(String s) { }
第7题
A.正确
B.错误
第8题
A.public class A implements B,D{}
B.public class A extends B implements C,D,E{}
C.public class A extends B,D{}
D.public class A extends B{}
第9题
A.public class Date{private int year;public int getYear(){return year;}public void SetYear(int y){year=y;}} ;
B.protected class Date{private int year;public int getYear(){return year;}public void SetYear(int y){year=y;}} ;
C.public class Date{public int year;public int getYear(){return year;}public void SetYear(int y){year=y;}} ;
D.public class Date{private int year;private int getYear(){return year;}rivate void SetYear(int y){year=y;}}
第10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11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