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InterfaceDemo.java
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96 lines (80 loc) · 1.52 KB
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//interfaces are 100% Abstract Before Java 8
interface IPlayer
{
int MAX_JUMP = 100;
int DEFAULT_JUMP = 10;
int MAX_POWER = 100;
int MIN_POWER = 5;
int DEFAULT_POWER = 10;
public abstract long attack();
long defense();
boolean powerIncrement();
boolean powerDecrement();
int showPower();
}
class BlackPlayer implements IPlayer{
int currentPower = DEFAULT_POWER;
@Override
public long attack() {
// TODO Auto-generated method stub
return 20;
}
@Override
public long defense() {
// TODO Auto-generated method stub
return 10;
}
@Override
public boolean powerIncrement() {
if(currentPower<MAX_POWER){
currentPower++;
return true;
}
return false;
}
@Override
public boolean powerDecrement() {
if(currentPower>MIN_POWER){
currentPower--;
return true;
}
return false;
}
@Override
public int showPower() {
// TODO Auto-generated method stub
return currentPower;
}
}
class RedPlayer implements IPlayer{
@Override
public long attack() {
// TODO Auto-generated method stub
return 0;
}
@Override
public long defense() {
// TODO Auto-generated method stub
return 0;
}
@Override
public boolean powerIncrement() {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean powerDecrement() {
// TODO Auto-generated method stub
return false;
}
@Override
public int showPower() {
// TODO Auto-generated method stub
return 0;
}
}
public class InterfaceDemo {
public static void main(String[] args) {
// TODO Auto-generated method stub
}
}