java StringBuffer讀寫檔案

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StringBuffer 讀寫檔案

import java.io.;
public class FileIO_StringBuffer {
public static void main(String[] args) {
//讀檔案到Stringbuffer
StringBuffer sb = new StringBuffer();
String sourcePath = "C:\Users\Administrator\Desktop\1.txt";//源檔案路徑(.*)
BufferedReader br = null;
try {
br = new BufferedReader(new FileReader(sourcePath));
String str;
while((str = br.readLine()) != null) {//逐行讀取
sb.append(str);//加在StringBuffer尾
sb.append("\r\n");//行尾 加分行符號
}
br.close();//別忘記，切記
}
catch(Exception e){
System.out.println(e.getMessage());
}
//寫入檔案
String targetPath = "C:\Users\Administrator\Desktop\2.txt";//目標檔案路徑
File f = new File(targetPath);//建立檔案
try {
BufferedWriter bw = new BufferedWriter(new FileWriter(f));
bw.write(sb.toString());
bw.flush();
bw.close();
}
catch(Exception e) {
System.out.println(e.getMessage());
}
}
}

java StringBuffer讀寫檔案