java:如何在主类中操作数据数组?
这被称为java:如何在主类中操作数据数组?,java,Java,这被称为GoHomeAction.java import javax.swing.*; import java.awt.Image; import java.awt.event.ActionEvent; import static java.awt.event.KeyEvent.VK_H; public class GoHomeAction extends BrowserAction { public GoHomeAction(BrowsersTabbedPane control
GoHomeAction.java
import javax.swing.*;
import java.awt.Image;
import java.awt.event.ActionEvent;
import static java.awt.event.KeyEvent.VK_H;
public class GoHomeAction extends BrowserAction {
public GoHomeAction(BrowsersTabbedPane controller) {
}
public void actionPerformed(ActionEvent e) {
//need to add to data[] which is located in MainClass.java
}
}
在这个操作中,我需要添加到data[]
,它位于MainClass.java
import javax.swing.*;
import java.awt.Image;
import java.awt.event.ActionEvent;
import static java.awt.event.KeyEvent.VK_H;
public class GoHomeAction extends BrowserAction {
public GoHomeAction(BrowsersTabbedPane controller) {
}
public void actionPerformed(ActionEvent e) {
//need to add to data[] which is located in MainClass.java
}
}
如何实现这一点?如果在应用程序的整个生命周期中,应用程序开始时需要任何数据,则需要将其存储在内存中或通过其他技术(数据库)来利用下游。最简单的方法是将信息传递到类中,或使信息从MainClass静态可用:
//as an example of static:
public static final MyObject[] data[] = new MyObject[100];
然而,globals通常是一种反模式。尤其是当它们被修改时。如果你需要触摸它,也许你需要一个载体来更好地移动它。这些数据属于哪里?它真的属于main类吗,还是应该有其他人是数据的所有者?在设计课堂结构和互动行为时,这些都是很好的问题
祝你好运