java数组与图形化界面.doc

Java面向对象编程实验报告题 目：数组与图形化界面 专 业： 网络工程 班 级： 1120551 学 号： 26 姓 名： 崔小杰 太原工业学院计算机工程系年 月 日一、实验目的与要求 1、掌握Java编程中的数组的应用 2、掌握Java GUI编程的应用以及API的查阅 3、掌握Java GUI 窗体容器、布局管理器、基本组件、事件的注册实验内容Java GUI实现如下图简单计算器三、实施步骤package com.sram.view;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Dimension;import java.awt.FileDialog;import java.awt.FlowLayout;import java.awt.Font;import java.awt.GridLayout;import java.awt.Image;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.ItemEvent;import java.awt.event.ItemListener;import java.awt.event.KeyAdapter;import java.awt.event.KeyEvent;import java.awt.event.MouseAdapter;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import java.awt.event.WindowListener;import java.io.File;import .Socket;import javax.swing.ImageIcon;import javax.swing.JButton;import javax.swing.JComboBox;import javax.swing.JFileChooser;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JMenu;import javax.swing.JMenuBar;import javax.swing.JMenuItem;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTextArea;import javax.swing.JTextField;import javax.swing.filechooser.FileFilter;public class JiSuanQi private JFrame frame;private JTextField file;private JPanel panel1,panel2,panel3; private JButton btns = new JButton10; private JButton btn1,btn2,btn3,btn4,btn5,btn6,btn7;/设置操作键 public JiSuanQi() init();addListener();public void init()frame=new JFrame(计算器);file=new JTextField(20);btn1=new JButton(清除);btn2=new JButton(+);btn3=new JButton(-);btn4=new JButton(*);btn5=new JButton(/);btn6=new JButton(=);btn7=new JButton(.);panel1=new JPanel();/添加输入框panel2=new JPanel();/添加清除按钮panel3=new JPanel();/添加下面的16个按钮panel1.setLayout(new FlowLayout(); panel1.add(file); panel2.setLayout(new BorderLayout(); panel2.add(btn1,BorderLayout.CENTER); /设置JPanel3的布局（GridLayout） GridLayout gl = new GridLayout(4,4); panel3.setLayout(gl); for(int i=0;i10;i+) btnsi=new JButton(+i); panel3.add(btns7); panel3.add(btns8); panel3.add(btns9); panel3.add(btn2); panel3.add(btns4); panel3.add(btns5); panel3.add(btns6); panel3.add(btn3); panel3.add(btns1); panel3.add(btns2); panel3.add(btns3); panel3.add(btn4); panel3.add(btns0); panel3.add(btn7); panel3.add(btn5); panel3.add(btn6); /开始设置窗体的属性 frame.setLayout(new BorderLayout(); frame.add(panel1,BorderLayout.NORTH); frame.add(panel2,BorderLayout.CENTER); frame.add(panel3,BorderLayout.SOUTH); frame.setSize(300,250);frame.setLocationRelativeTo(null);frame.setResizable(false);/使得窗口大小不能调整frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);/关闭窗口frame.setVisible(true);public void addListener() /* *对数字按钮进行监听 * */ for(int i=0;i10;i+) String s=; final String ss=s.valueOf(i); btnsi.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) / TODO Auto-generated method stubString text=file.getText(); file.setText(text+ss);); /* * 对操作的按钮进行监听 * */ /清空 btn1.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) / TODO Auto-generated method stubString text=file.getText(); file.setText(null);); /加法 btn2.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) / TODO Auto-generated method stubString text=file.getText(); file.setText(text+);); /减法 btn3.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) / TODO Auto-generated method stubString text=file.getText(); file.setText(text+-);); /乘法 btn4.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) / TODO Auto-generated method stubString text=file.getText(); file.setText(text+*);); /除法 btn5.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) / TODO Auto-generated method stubString text=file.getText(); file.setText(text+/);); /等号 btn6.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) / TODO Auto-generated method stubString text=file.getText();String c=new String4;c0=+;c1=-;c2=*;c3=/;for(int i=0;i4;i+)if(text.indexOf(ci)!=-1) System.out.println(有操作符号); if(i=0) /加法 String text0=text.split(+)0; String text1=text.split(+)1; System.out.println(text0+text1); file.setText(+add(text0, text1); if(i=1) /减法 String text0=text.split(-)0; String text1=text.split(-)1; file.setText(+jianFa(text0, text1); if(i=2) /乘法 String text0=text.split(*)0; String text1=text.split(*)1; System.out.println(text0+text1); file.setText(+chengFa(text0, text1); if(i=3) /除法 String text0=text.split(/)0; String text1=text.split(/)1; if(text1.equals(0) file.setText(除数不能是0); else file.setText(+chuFa(text0, text1); else); btn7.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) / TODO Auto-generated method stubString text=file.getText(); file.setText(text+.););frame.addWindowListener(new WindowAdapter() Overridepublic void windowClosing(WindowEvent e) / TODO Auto-generated method stubframe.dispose(););public float chuFa(String text0, String text1) / TODO Auto-generated method stubfloat chuFa=0;chuFa=Float.parseFloat(text0)/Float.parseFloat(text1);return chuFa;public float chengFa(String text0, String text1) / TODO Auto-generated method stubfloat chengFa=0;chengFa=Float.parseFloat(text0)*Float.parseFloat(text1);return chengFa;public float jianFa(String text0, String text1) / TODO Auto-generated method stubfloat jianFa=0;jianFa=Float.parseFloat(text0)-Float.parseFloat(text1);return jianFa;public float add(String str1,String str2) float add=0; add=Float.parseFloat(str1)+Float.parseFloa