Java - 每次循环迭代后累加器变量不会增加

Question

当汽车离开时，汽车在车库内移动的次数应与车牌一起显示。我目前得到的输出显示一切正常，但所有汽车的移动次数保持为 0。我无法确定如何增加变量并在输出中显示累积值。我该如何解决？

汽车类

package garagetester;

public class Car 

{

    private String licensePlate;//stores the license plate of the car as a String

    private int movesCount = 0;//stores the number of times the car has been 

                           //moved 

    public Car(String licensePlate)//builds a Car object with 

    {

       this.licensePlate = licensePlate;

    } 

    public String getLicensePlate() {

        return licensePlate;

    }

    public int getMovesCount() {

        return movesCount;

    }

    public void incrementMovesCount(int movesCount) {

        movesCount++;

     }

}//end of Car class

Answer 1

您的参数movesCount正在影响类成员movesCount。在以下突变器中：public void incrementMovesCount(int movesCount) {    // movesCount++; --> this is incrementing the parameter    // either remove the parameter `movesCount` from this mutator    // since it's not being used, or do the following    this.movesCount++; // --> this refers to the class member movesCount}