By making use of the this
keyword, you can even use
the same name for arguments to the constructor (or any other
method) as you use for field names. For example,
class TwoDPoint {
double x;
double y;
TwoDPoint(double x, double y) {
this.x = x;
this.y = y;
}
String getAsString() {
return "(" + this.x + "," + this.y + ")";
}
void setX(double x) {
this.x = x;
}
void setY(double y) {
this.y = y;
}
double getX() {
return this.x;
}
double getY() {
return this.y;
}
}
Inside a method, a declaration of a variable or argument with the
same name as a field shadows the field. You can refer to
the field by prefixing its name with this
.