import static java.lang.Math.abs;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import javax.swing.*;
public class Frame extends JFrame{
private JLabel rooth1=new JLabel("系数：");
private JLabel rooth2=new JLabel("指数：");
private JLabel rooth3=new JLabel("结果：");
private JLabel rooth4=new JLabel("积分上限：");
private JLabel rooth5=new JLabel("积分下限：");
private JTextField tf1=new JTextField();
private JTextField tf2=new JTextField();
private JTextField tf3=new JTextField();
private JTextField tf4=new JTextField();
private JTextField tf5=new JTextField();
private JButton bt1=new JButton("点击求解");
ArrayList<Double> coef=new ArrayList<Double>();//系数
ArrayList<Double> index=new ArrayList<Double>();//指数
double x0,xn;//积分上限，下限
public Frame()
{
this.setContentPane(new MyPanel());
setTitle("何子光――JAVA：求函数积分");
setLayout(null);
setSize(700,500);
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