相关疑难解决方法(0)

我想添加JTable到JPanel其布局中null. JPanel包含其他组件.我必须添加JTable适当的位置.

似乎不可能修复Graphics2D缺少的代码,我必须设置动画的修复大小,否则一些开始外面的矩形490 x 490冻结或在屏幕上摇晃

我的SSCCE

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.Random;
import java.util.Vector;
import java.util.regex.Pattern;
import javax.swing.*;
import javax.swing.table.*;

public class OneTwoThree implements Runnable {

    private String testS;
    private JFrame frame = new JFrame("frameTitle");
    private JScrollPane tblS = new JScrollPane();
    private JTable tbl;
    private Vector<String> rOrH;
    private long t1 = 0L;
    private long t2 = 0L;
    private AlphaChars aChars = new AlphaChars();
    private GradientViewPortOriginal tableViewPort;
    private JViewport viewport = new JViewport();
    private Random random …