java--面向对象之继承3
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human:
package JC2;
public class human {
private String firstName;
private String lastName;
public human(String firstName, String lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
public String getFirstName() {
return firstName;
}
public String getLastName() {
return lastName;
}
public void display(){
System.out.println(this.firstName+this.lastName);
}
}
Chinese:
package JC2;
public class Chinese extends human {
public Chinese(String firstName, String lastName) {
super(firstName, lastName);
}
/* public void display(){
System.out.println(super.getFirstName()+super.getLastName());
}*/
@Override
public void display() {
System.out.println(super.getFirstName()+super.getLastName());
}
}
Englishman:
package JC2;
public class Englishman extends human {
public Englishman(String firstName, String lastName) {
super(firstName, lastName);
}
public void display(){
System.out.println(super.getLastName()+super.getFirstName());
}
}
test:
package JC2;
import org.junit.Test;
public class jTest {
@Test
public void test1(){
human h=new human("张","三");
Chinese c=new Chinese("张","三");
Englishman e=new Englishman("张","三");
h.display();
c.display();
e.display();
}
}
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