小编Gor*_*sth的帖子

怎么加JLabel出来的GridLayout？我有一个8x8网格布局.

Container content = getContentPane();
content.setLayout(new GridLayout(8, 8,2,2));
for (int f = 0; f < btnArr.length; f++){
    for (int s = 0; s < btnArr.length; s++){
        btnArr[f][s] = new JButton();
        btnArr[f][s].addActionListener(this);
        content.add(btnArr[f][s]);
        btnArr[f][s].setBackground(randomColor());
    }
}

如何解决这个错误？

Exception in thread "main" java.awt.AWTError: Assistive Technology not found:
 com.sun.java.accessibility.AccessBridge
    at java.awt.Toolkit.loadAssistiveTechnologies(Toolkit.java:775)
    at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:861)
    at java.awt.Window.getToolkit(Window.java:1127)
    at java.awt.Window.init(Window.java:369)
    at java.awt.Window.(Window.java:407)
    at java.awt.Frame.(Frame.java:402)
    at java.awt.Frame.(Frame.java:367)
    at javax.swing.JFrame.(JFrame.java:163)
    at FirstJavaProject.(FirstJavaProject.java:7)
    at FirstJavaProject.main(FirstJavaProject.java:5)

它发生在执行以下程序期间:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class TenButtons extends JFrame{

    JButton [] btns= new JButton[10];

    public static void main(String args[]){
        new TenButtons();
    }
    public TenButtons(){
        this.setSize(500,500);
        this.setTitle("10 Buttons");
        this.setLayout(new GridLayout(5,2));
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        for(int i=0; i<btns.length; i++){
           btns[i]=new JButton("Button ");
           this.add(btns[i]);
        }
        this.setVisible(true);
    }
}

我的JDK_HOME/jre/lib/accessibility.properties文件包含以下内容:

## …

概述Java程序如何将字符串(如"1,2,3,4,5")转换为数组({1,2,3,4,5})