如何将新项目添加到在jtextfield中键入的jtextarea？ [英] How do I add new item to jtextarea that was typed in jtextfield ?

问题描述

这是我的代码你怎么认为有问题？

this is my code how do you think is there a problem?

private class Listener implements ActionListener {
    public void actionPerformed(ActionEvent e) {
        list.add(text1.getText());
        string += list.get(list.size() - 1) + "\n";
        area.setText(string);
        text1.setText("");

    }
}

我的尝试：



我试图使用一些内置函数

What I have tried:

I have tried to use some built-in functions

推荐答案

我已经解决了谢谢你，这就是答案

guys i have solved it thank you and here is the answer

private class Listener implements ActionListener {

    public void actionPerformed(ActionEvent e) {
        list.add(text1.getText());
        String string = "";
        for (int i = 0; i < list.size(); i++) {
            string += list.get(i) + "\n";
        }
        area.setText(string);
        text1.setText("");
    }
}

这篇关于如何将新项目添加到在jtextfield中键入的jtextarea？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！