For Java: Define a constructor as indicated. Sample output for below program: co

Question

For Java:

Define a constructor as indicated. Sample output for below program:

code:

// ===== Code from file CarRecord.java =====
public class CarRecord {
private int yearMade;
private int vehicleIdNum;

public void setYearMade(int originalYear) {
yearMade = originalYear;
return;
}

public void setVehicleIdNum(int vehIdNum) {
vehicleIdNum = vehIdNum;
return;
}

public void print() {
System.out.println("Year: " + yearMade + ", VIN: " + vehicleIdNum);
return;
}

// FIXME: Write constructor, initialize year to 0, vehicle ID num to -1.

/* Your solution goes here */

}
// ===== end =====

// ===== Code from file CallCarRecord.java =====
public class CallCarRecord {
public static void main (String [] args) {
CarRecord familyCar = new CarRecord();

familyCar.print();
familyCar.setYearMade(2009);
familyCar.setVehicleIdNum(444555666);
familyCar.print();

return;
}
}
// ===== end =====

Explanation / Answer

Hi,

I have added a constructor and highlighted the code changes below.

public class CarRecord {
private int yearMade;
private int vehicleIdNum;
public CarRecord(){
   yearMade = 0;
   vehicleIdNum = -1;
}
public void setYearMade(int originalYear) {
yearMade = originalYear;
return;
}
public void setVehicleIdNum(int vehIdNum) {
vehicleIdNum = vehIdNum;
return;
}
public void print() {
System.out.println("Year: " + yearMade + ", VIN: " + vehicleIdNum);
return;
}
// FIXME: Write constructor, initialize year to 0, vehicle ID num to -1.
/* Your solution goes here */
}
// ===== end =====
// ===== Code from file CallCarRecord.java =====
public class CallCarRecord {
public static void main (String [] args) {
CarRecord familyCar = new CarRecord();
familyCar.print();
familyCar.setYearMade(2009);
familyCar.setVehicleIdNum(444555666);
familyCar.print();
return;
}
}

output:

Year: 0, VIN: -1
Year: 2009, VIN: 444555666

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