Program java input parameter nonvoid konstruktor

import java.io.*;

class kotak

{

    double panjang;

    double lebar;

    double tinggi;

void cetakvolum(double p,double l,double t)

{

    panjang=p;

    lebar=l;

    tinggi=t;

    double volum;

    volum=panjang*lebar*tinggi;

System.out.print("volum:"+volum);

}

}

public class inputvoidparameter{

public static void main(String[]args)throws IOException

{

    BufferedReader br;

            br = new BufferedReader (new InputStreamReader(System.in));

kotak k=new kotak();

System.out.print("panjang =");

k.panjang=Double.parseDouble(br.readLine());

System.out.print("lebar =");

k.lebar=Double.parseDouble(br.readLine());

System.out.print("tinggi =");

k.tinggi=Double.parseDouble(br.readLine());

k.cetakvolum(k.panjang,k.lebar,k.tinggi);

}

}

import java.io.*;

class kotak

{

    double panjang;

    double lebar;

    double tinggi;

double cetakvolum(double p,double l,double t)

{

    panjang=p;

    lebar=l;

    tinggi=t;

    double volum;

    volum=panjang*lebar*tinggi;

    return volum;

}

}

public class nonvoidparameter{

public static void main(String[]args)throws IOException

{

BufferedReader br;

            br = new BufferedReader (new InputStreamReader(System.in));

kotak k=new kotak();

System.out.print("panjang =");

k.panjang=Double.parseDouble(br.readLine());

System.out.print("lebar =");

k.lebar=Double.parseDouble(br.readLine());

System.out.print("tinggi =");

k.tinggi=Double.parseDouble(br.readLine());

System.out.print("volume="+k.cetakvolum(k.panjang,k.lebar,k.tinggi));

}

}

import java.io.*;

class kotak

{

    double panjang;

    double lebar;

    double tinggi;

kotak()

{

panjang=panjang;

lebar=lebar;

tinggi=tinggi;    

}

    double volum()

    {

    double volum=panjang*lebar*tinggi;

    return volum;

}

}

public class nonvoidkonstruktor{

public static void main(String[]args)throws IOException

{

    BufferedReader br;

            br = new BufferedReader (new InputStreamReader(System.in));

kotak k=new kotak();

System.out.print("panjang =");

k.panjang=Double.parseDouble(br.readLine());

System.out.print("lebar =");

k.lebar=Double.parseDouble(br.readLine());

System.out.print("tinggi =");

k.tinggi=Double.parseDouble(br.readLine());

System.out.print("volum:"+k.volum());

}

}