PPT Slide
class Point {
...
public String toString(){
return "("+getX()+","+getY()+")";
}
public boolean equals(Object o){
if(o == this){
return true;
}
else if(o == null){
return false;
}
else if(o instanceof Point){
Point p = (Point) o;
return getX() == p.getX() && getY() == p.getY();
}
else{
return false;
}
}
...
}
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