布尔型二传手输出错误

Question

当我在main方法中调用BookClass时，status的唯一输出是true或false 。 为什么不在我的Setter中打印出if-else语句？

public class Book {

private String title;
private int year;
private String author;
private boolean status;

public Book(String title, int year, String author, boolean status){
    this.title = title;
    this.year = year;
    this.author = author;
    this.status = status;
    }

public void setStatus(boolean status){
    this.status = status;   
    if(status){
        System.out.println("Unavailable");
    }
    else{
        System.out.println("Available");
    }
}

Answer 1

您应该在构造函数中使用setStaus函数，因为setter和getter不能隐式工作：

public Book(String title, int year, String author, boolean status){
    this.title = title;
    this.year = year;
    this.author = author;
    setStatus(status);
}