使用 netbeans 将 ArrayList 加载到 JCombobox [英] Loading an ArrayList into a JCombobox using netbeans

问题描述

目前有一个名为 SundayList 的 ArrayList，它会在框架 AddStudent 加载后立即加载(GUI 部分)

Currently have an ArrayList called SundayList which is loaded as soon as the frame AddStudent is loaded (bit of GUI)

Netbeans 自动生成的代码为:

The code automatically generated by Netbeans is:

comboboxSunday = new javax.swing.JComboBox();

comboboxSunday.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Item1", "Item2" }));

如何使用我自己的数组加载组合框项目?该数组包括以下项目:

How do I load the combobox items with my own array? The array includes items such as:

Activity1
Activity2
Activity3
Activity4

在我之前的搜索中，人们提到使用 toString() 和 toArray()，但我不熟悉这两种方法，以及它们如何帮助将列表加载到组合框中，因为我对 java 很陌生..

From my previous search, people mentioned about using a toString() and toArray(), and I'm not familiar with either methods, and how they help in loading the list into the combobox as I'm quite new to java..

推荐答案

您可以创建自己的 ComboBoxModel 以 List 作为主要参数，但这有点更多参与

You could create your own ComboBoxModel that takes a List as the main parameter, but that's a little more involved

comboboxSunday.setModel(new DefaultComboBoxModel());
for (Object item : listOfItems) {
    comboboxSunday.addItem(item);
}

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