constructor of a class code example
Example 1: how to create a class with a constructor
class Car {
// fields
model: String;
doors: Number;
isElectric: Boolean;
constructor(model: String, doors: Number, isElectric: Boolean) {
this.model = model;
this.doors = doors;
this.isElectric = isElectric;
}
displayMake(): void {
console.log(`This car is ${this.model}`);
}
}
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() <<endl;
return 0;
}