super

[dj kourampies]

Hello to everybody. I want to parse some variables from the superclass to subclass i ve tried to use supper in the following example but it doesn t work. Anyone can help

This is the superclass:
/*
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* and open the template in the editor.
*/

package ofthalmiatreio;

/**
*
* @author kris
*/
public class Asthenhs {

private String epwnymo;
private String onoma;
private int tilefwno;
private String asForeas;

Asthenhs(Asthenhs ob){

epwnymo=ob.epwnymo;
onoma=ob.epwnymo;
tilefwno=ob.tilefwno;
asForeas=ob.asForeas;
}

public Asthenhs(){

}
public Asthenhs(String ep, String onom, int til, String as){

this.epwnymo=ep;
this.onoma=onom;
this.tilefwno=til;
this.asForeas=as;
}
public void setEpwnymo(String ep){

this.epwnymo=ep;
}
public String getEpwnymo(){

return epwnymo;
}
public void setOnoma(String onom){

this.onoma=onom;
}
public String getOnoma(){

return onoma;
}
public void setTilefwno(int til){

this.tilefwno=til;
}
public int getTilefwno(){

return tilefwno;
}
public void setasForeas(String as){

this.asForeas=as;
}
public String getasForeas (){

return asForeas;
}

}

[dj kourampies]

And this is the code with subclass:

/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

package ofthalmiatreio;
import java.util.*;
import java.text.*;

/**
*
* @author kris
*/
public class istorikoAsthenous extends Asthenhs {

private String astheneies;
private String sintages;

private int day;
private int month;
private int year;

DateFormat customFormat =
new SimpleDateFormat("dd MMM yyyy");
DateFormat mediumFormat =
DateFormat.getDateInstance(DateFormat.MEDIUM);

istorikoAsthenous(istorikoAsthenous ob){

super(ob);
astheneies=ob.astheneies;
sintages=ob.sintages;
day=ob.day;
month=ob.month;
year=ob.year;
}
public istorikoAsthenous(){

astheneies="NULL";
sintages="NULL";
day=0;
month=0;
year=0;
}

public istorikoAsthenous(String astheneies, int day, int month, int year, String sintages, String epwnymo){

this.astheneies=astheneies;
this.day=day;
this.month=month;
this.year=year;
this.sintages=sintages;

super(epwnymo);
}
public void setAstheneies(String asth){

astheneies=asth;
}
public String getAsteneies(){

return astheneies;
}
public void setDay(int day){

day=Calendar.DATE;
this.day=day;
}
public int getDay(){

return day;
}
public void setMonth(int month){

month=Calendar.MONTH;
this.month=month;
}
public int getMonth(){

return month;
}
public void setYear(int year){

year=Calendar.YEAR;
this.year=year;
}
public int getYear(){

return year;
}
public void setSintages(String sint){

sintages=sint;
}
public String getSintages(){

return sintages;
}

public void showIstoriko(){

System.out.println("H pathisi tou asthenous einai:"+astheneies);
System.out.println("H imerominia eksetasis einai:"+ day +"/"+ month+"/"+year);
System.out.println("I sintagi tou giatrou:"+sintages);
}
public static void main(String [] args){

istorikoAsthenous a= new istorikoAsthenous();
a.setAstheneies("mywpia");
a.setDay(3);
a.setMonth(11);
a.setYear(2009);
a.setSintages("gyalia");
a.showIstoriko();
}

}

[dj kourampies]

the compiler said "call to super must be first statement in constructor" when i try to parse the variables of superclass in the constructor of subclass.:rolleyes:

[Fubarable]

So do that. Make the super(...) the first call in the subclass's constructor when you need to make an explicit call to the super's constructor.

[angryboy]

what fubarable said. and if you want to call super last, you'll need to use: super.istorikoAsthenous(); or something like that...

[dj kourampies]

thank you guys it was so simmple