小编use*_*948的帖子

好吧所以我正在制作一个计算器,我得到一个堆栈溢出错误,我猜测是因为它试图处理大量数据.

import java.awt.*;
import javax.swing.*;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class Size extends JPanel implements ActionListener {

double base,size;
int shoesize;
String race;

JButton calc = new JButton("Calculate");

JTextField textsize = new JTextField(20);

public Size() {
    //JButton calc;
    System.out.println("Started the adding");

    calc.addActionListener(this);
    textsize.addActionListener(this);

    calc.setBounds(135, 200, 120, 40);
    textsize.setBounds(15,40,70,20);

    add(calc);
    add(textsize);

    setPreferredSize(new Dimension(400, 300));
    setLayout(null);
}

public static void main(String[] args) {
    JFrame frame = new JFrame("Size calc");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.getContentPane().add(new Size());
    frame.pack();
    frame.setVisible(true);
}

@Override
public void …