双击以执行Java程序

本文的代码在windows下和linux下均测试通过：

       Java代码：

package com.pinus.util;

import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.UIManager;

public class Calculator {

    private JFrame jFrame;
    private JLabel firstLabel, secondLabel, resultLabel;
    private JTextField firstTextField, secondTextField, resultTextField;
    private Counter counter;

    public Calculator() {
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (Exception e) {
            System.err.println("-----");
        }
        jFrame = new JFrame("Calculator");
        counter = new Counter();
        Container container = jFrame.getContentPane();
        container.setLayout(new FlowLayout());
        firstLabel = new JLabel();
        firstTextField = new JTextField(15);
        firstTextField.addActionListener(counter);
        firstLabel.setText(" FirstNumber:");
        secondLabel = new JLabel();
        secondTextField = new JTextField(15);
        secondLabel.setText("SecondNumber:");
        secondTextField.addActionListener(counter);
        resultLabel = new JLabel();
        resultTextField = new JTextField(15);
        resultLabel.setText("       Total:");
        container.add(firstLabel);
        container.add(firstTextField);
        container.add(secondLabel);
        container.add(secondTextField);
        container.add(resultLabel);
        container.add(resultTextField);
        jFrame.setResizable(false);
        jFrame.setLocationRelativeTo(null);
        jFrame.setSize(200, 140);
        jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        jFrame.setVisible(true);

    }

    public class Counter implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            int first = Integer.parseInt(firstTextField.getText().trim());
            int second = Integer.parseInt(secondTextField.getText().trim());
            resultTextField.setText(first + second + "");
        }
    }

    public static void main(String[] args) throws Exception {
        new Calculator();
    }
}

windows下打开命令提示符：         

   1.  编译 ：javac -d . Calculator.java 

   2.  执行 ：java com.pinus.util.Calculator

   3.  因此我们可以把执行的命令写为批处理文件（run.bat)

        其内容为：java com.pinus.util.Calculator

        注意:要把此bat放在与com同一级文件夹下

   4.新建一文件夹bin，把编译后的.class文件（带上其所在文件夹）和批处理文件.bat

      在此文件件夹下

   5.建一文件start.bat(与bin文件夹处于同一级文件夹下)内容为：cd bin         

                                                                                                              start run.bat

linux下打开终端：         

   1.  编译 ：javac -d . Calculator.java 

   2.  执行 ：java com.pinus.util.Calculator

   3.  因此我们可以把执行的命令写为shell脚本文件（run.sh)

        其内容为：#!/bin/sh

                            java com.pinus.util.Calculator

        注意:要把此sh脚本放在与com同一级目录下

   4.新建一目录bin，把编译后的.class文件（带上其目录）和shell脚本文件.sh放在此目录下

   5.建一文件start.sh(与bin目录处于同一级目录下)内容为：cd bin         

                                                                                                    sh run.sh