public className(dtype1 param1, ...) {...}

Week 4: Writing classes/06b. Write the constructor

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+In the attached program, the class 'Car' is defined.
+However, the class lacks a 'constructor'.
+
+Complete the class by writing a constructor to the class, which takes as parameters the 
+values of the attributes in the order in which they are defined in the class.
+
+
+
+
+
+import java.util.Random;
+
+public class Test{
+    public static void main(String[] args){
+        final Random r = new Random();
+        
+        
+        System.out.println("Testing to create an object...");
+        
+        Car c1 = new Car("Datsun", "100A", 1976, 0.8);
+        Car c2 = new Car("Nissan", "Skyline R34 GT-R", 1995, 2.5);
+        
+        System.out.println(c1);
+        System.out.println(c2);
+    }
+}
+
+class Car {
+    String brand;
+    String model;
+    int yearmodel;
+    double engineCapacity;
+
+
+
+    //ADD CONSTRUCTOR
+    public Car(String brand, String model, int yearmodel, double engineCapacity) {
+        this.brand = brand;
+        this.model = model;
+        this.yearmodel = yearmodel;
+        this.engineCapacity = engineCapacity;
+    }
+
+
+
+
+
+    
+    @Override
+    public String toString() {
+        return "Car [brand=" + brand + ", model=" + model + ", yearmodel=" + yearmodel + ", engineCapacity="
+            + engineCapacity + "]";
+    }
+    
+}
+
+
+
+
+
+Testing to create an object...
+Car [brand=Datsun, model=100A, yearmodel=1976, engineCapacity=0.8]
+Car [brand=Nissan, model=Skyline R34 GT-R, yearmodel=1995, engineCapacity=2.5]
+