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我想在java中创建一个字符计数器，并且我的代码工作中有我的核心部分。但是，我的GUI有问题。当我在我的JTextArea字段中按Enter时，它将扩展它，但它不会扩展我的GUI。这导致我的textfield垂直扩展到它覆盖我所有的按钮和字符数的地方。我如何使我的GUI与我的JTextArea一起展开？谢谢 ：）。GUI不能与JTextArea一起扩展
注意：对图片的超链接道歉，我对这个网站仍然陌生，所以我没有足够的信誉来上传图片。
这是它的外观，在我的文本区域一行文本（与GUI效果很好）
这是它的外观与文本的多行（或只是少数在我的文字区 “进入” 按键）（不带GUI很好地工作）
我的代码：
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
public class characterCounterTwov4{
//creates a new Jframe to put our frame objets in
JFrame frame = new JFrame();
//creates a text field JTextArea frame object
JTextArea txtField = new JTextArea();
//stores the string of the the jtextfield into a variable text
String text = txtField.getText();
//creates a text field that is uneditable with the word "characters"
String charString = "Characters: ";
JTextField charField = new JTextField(charString, 25);
//string that will be used in a text field to display the # of chars
String charCount = Integer.toString(text.length());
//Text field that displays charCount
JTextField charFieldTwo = new JTextField(charCount, 10);
public characterCounterTwov4(){
//disables the charField from being editable.
charField.setEditable(false);
//calculate button
JButton calcButton = new JButton("Calculate");
calcButton.addActionListener(new ActionListener(){
public void actionPerformed(java.awt.event.ActionEvent event)
{
System.out.println("button pressed");
//stores the string of the the jtextfield into a variable text
text = txtField.getText();
//string that will be used in a text field to display the # of chars
String charCount = Integer.toString(text.length());
//Text field that displays charCount
charFieldTwo.setText(charCount);
}
});
/*******************/
/* Frame Setup */
/*******************/
//sets the layout of the frame
frame.setLayout(new BorderLayout());
//add's elements to the frame
frame.add(txtField, BorderLayout.NORTH);
frame.add(charField, BorderLayout.CENTER);
frame.add(charFieldTwo, BorderLayout.SOUTH);
frame.add(calcButton, BorderLayout.EAST);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args){
new characterCounterTwov4();
System.out.println("End of program. Should not get here");
}
}