Add Editor 文件

Editor

@@ -0,0 +1,59 @@
+import java.io.*;
+public class Editor{
+  private String content;           //文本文件的内容
+  private String filepath;          //文本文件的路径
+  private String  charsetName;      //文本文件的字符编码
+  
+  public Editor(String filepath,String charsetName){
+    this.filepath=filepath;
+    this.charsetName=charsetName;  
+  }
+  
+  //把文件中的内容输入到content属性中    
+  public void load(){
+    try{
+      InputStream in1=new FileInputStream(filepath);
+      InputStreamReader in2= 
+              new InputStreamReader(in1,charsetName);
+    
+      BufferedReader in3=new BufferedReader(in2);
+
+      String data=null;
+      content="";
+      while((data=in3.readLine())!=null)
+        content+=data+"\n";
+
+      in3.close();
+    }catch(IOException e){}
+  }
+
+  //把content属性的内容输出到文件中
+  public void save(){ 
+    try{
+      OutputStream out1=new FileOutputStream(filepath);
+      OutputStreamWriter out2
+            =new OutputStreamWriter(out1,charsetName);
+    
+      PrintWriter out3=new PrintWriter(out2,true);
+      out3.print(content);
+      out3.close();
+    }catch(IOException e){}
+  }
+
+  //获得文本内容 
+  public String getContent(){  
+    return content;
+  }
+
+  // 替换content属性中的特定字符串
+  public void replace(String oldStr,String newStr){
+    content=content.replace(oldStr,newStr);
+  }  
+
+  public static void main(String args[]){
+    Editor editor=new Editor("D:\\mydir\\data.txt","UTF-8");
+    editor.load();                    //加载data.txt文件
+    editor.replace("Hello","Hi");  //替换特定字符串
+    editor.save();                    //保存文件
+  }
+}