abstract class A{
private String name;
public A(String name) {
this.name = name;
}
public String getName() {
return this.name;
}
public abstract void fun();
}
class B extends A{
public B(String name) {
super(name);
}
public void fun() {
System.out.println(super.getName());
}
}
public class L {
public static void main(String[] args) {
// TODO Auto-generated method stub
B b = new B(null);
b.fun();
}
}
import java.sql.Date;
@SuppressWarnings("unused")
public abstract class Y {
private String name;
private String Class;
private String date;
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public String GetClass() {
return this.Class;
}
public void setClass(String Class) {
this.Class = Class;
}
public String getDate() {
return this.date;
}
public void setDate(String date) {
this.date = date;
}
public Y(String name,String Class,String date) {
this.name = name;
this.Class = Class;
this.date = date;
}
public Y() {
super();
}
@Override
public String toString() {
return "Student [name=" + name + "]";
}
public abstract String speak();
}
import java.sql.Date;
@SuppressWarnings("unused")
public class H extends Y{
private String matter;
public H(String name,String Class,String date,String matter) {
super(name,Class,date);
this.setMatter(matter);
}
@Override
public String speak() {
return "我叫 " + super.getName() + " 今年 " + super.GetClass() + " 身高 " + super.getDate() + " 体重 " + this.matter;
}
public String getMatter() {
return matter;
}
public void setMatter(String matter) {
this.matter = matter;
}
}
public class K {
public static void main(String[] args) {
// TODO Auto-generated method stub
Y stu = new H("cty，","21岁了，","175cm，",62KG。");
print(stu.speak());
}
private static void print(String speak) {
System.out.println(speak);
}
}
