class objects,methods, constructors code example
Example 1: why do we use Object Constructors
function Tree(name) {
this.name = name
}
let theTree = new Tree('Redwood')
console.log('theTree.constructor is ' + theTree.constructor)
Example 2: classes and constructors
using namespace std;
class Line {
public:
void setLength( double len );
double getLength( void );
Line(); // This is the constructor
private:
double length;
};
// Member functions definitions including constructor
Line::Line(void) {
cout << "Object is being created" << endl;
}
void Line::setLength( double len ) {
length = len;
}
double Line::getLength( void ) {
return length;
}
// Main function for the program
int main() {
Line line;
// set line length
line.setLength(6.0);
cout << "Length of line : " << line.getLength() <