JAVA 获取类中的实例名称？

Question

假设我有以下类(class):

public class System {

  private String property1;
  private String property2;
  private String property3;

  public void showProperties {
      System.out.println("Displaying properties for instance "+<INSTANCE NAME>+"of object System:"
                         "\nProperty#1: " + property1 +
                         "\nProperty#2: " + property2 +
                         "\nProperty#3: " + property3);
}

我正在寻找一种方法来获取将调用方法 showProperties 的系统实例的名称，以便在编写时:

System dieselEngine= new System();
mClass.property1 = "robust";
mClass.property2 = "viable";
mClass.property3 = "affordable";
dieselEngine.showProperties();

控制台输出为:

显示对象“System”的实例属性 dieselEngine :

属性#1:稳健

属性#2:可行

属性#3:负担得起

Answer 1

如上所述，如果实例名称对您如此重要，请重新定义您的类

class System {
    private String property1;
    private String property2;
    private String property3;
    private String instanceName;

    public System (String instance){
        instanceName = instance;
    }

    public void showProperties() {
        java.lang.System.out
            .println("Displaying properties for instance of "+instanceName+"object System:"
                    + "\nProperty#1: " + property1 + "\nProperty#2: "
                    + property2 + "\nProperty#3: " + property3);
    }
}

在创建对象时赋值

your.class.path.System dieselEngine= new your.class.path.System("dieselEngine");

Working Example