class Pembilang{
protected int nilai;
public Pembilang(){
nilai = 0;
}
public Pembilang(int nilaiAwal){
nilai=nilaiAwal;
}
public void kemasKini(){
nilai++;
}
public int nilainya(){
return nilai;
}
}
public class Pemasa extends Pembilang{
public Pemasa(){
super();
}
public Pemasa(int aInt)
{
super(aInt);
}
public void kemasKini(){
nilai--;
if( nilai==0)
{
System.out.println("Ring...Ring...");
}
}
public static void main (String args[])
{
Pemasa a = new Pemasa(9);
for(int i=0;i<10;i++)
{
a.kemasKini();
System.out.println(a.nilainya());
}
}
}
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