Boolean setter 错误输出

Question

当我在 main 方法中调用 BookClass 时，status 的唯一输出是 true 或 false。为什么它不会在我的 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函数 setStaus，因为 setter 和 getter 不会隐式工作：

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

Boolean setter 错误输出

Boolean setter wrong output

java

methods

setter

boolean

output