JAVA输入输出流实验报告单.doc

吉林大学应用技术学院实验（训）报告单（电子版）实验编号08实验班级540972实验名称输入输出流实验任务书编号08实验组别27实验组成员陈静报告人陈静指导教师罗凡实 验 报 告1 读取文本文件内容import java.io.*;import java.awt.*;import java.awt.event.*;public class TestFileDialogpublic static void main(String args)new FileFrame();class FileFrame extends Frame implements ActionListenerTextArea ta;Button open,quit;FileDialog fd;FileFrame()super(获取显示文本文件);ta=new TextArea(10,45);open=new Button(打开);quit=new Button(关闭);open.addActionListener(this);quit.addActionListener(this);setLayout(new FlowLayout();add(ta);add(open);add(quit);setSize(350,280);show();public void actionPerformed(ActionEvent e)if(e.getActionCommand()=打开)fd=new FileDialog(this,打开文件,FileDialog.LOAD);fd.setDirectory(d:);fd.show();tryFile myfile=new File(fd.getDirectory(),fd.getFile();System.out.print(myfile);FileReader inFile=new FileReader(myfile);BufferedReader inB=new BufferedReader(inFile);String fileContent=,str=;while(fileContent=inB.readLine()!=null)str=str+fileContent+n;ta.append(fileContent+n);catch(IOException ie)System.out.println(ie.toString();if(e.getActionCommand()=关闭)dispose();System.exit(0);2 读取图像文件import java.io.*;class ReadPicReadPic()tryFile f=new File(C:Documents and SettingsAdministrator桌面54097227 陈静run.gif);File f1=new File(C:Documents and SettingsAdministrator桌面54097227 陈静copyrun.gif);FileInputStream inFile=new FileInputStream(f);BufferedInputStream inB=new BufferedInputStream(inFile);FileOutputStream outFile=new FileOutputStream(f1);BufferedOutputStream outB=new BufferedOutputStream(outFile);byte b=new byte(int)f.length();while(inB.read(b)!=-1)outB.write(b);outB.flush();inB.close();outB.close();catch(Exception e)e.printStackTrace();public static void main(String args)new ReadPic();3 将内容写入文件import java.io.*;class UseStream1UseStream1(String path)tryFile f=new File(path,chenjing.txt);FileWriter outFile=new FileWriter(f);BufferedWriter outB=new BufferedWriter(outFile);String s=你们好，这是一个测试写入数据的文件。;outB.write(s);outB.newLine();outB.write(这是利用FileWriter与BufferedWriter的例题。);outB.flush();outB.close();FileReader inFile=new FileReader(f);BufferedReader inB=new BufferedReader(inFile);String fileContent=,str=;while(fileContent=inB.readLine()!=null)str=str+fileContent+n;System.out.println(str);inB.close();catch(Exception e)e.printStackTra