把string里的东西生成一个文件:
FileOutputStream out = null;
out = new FileOutputStream("C:\a.txt");
DataOutputStream textout = null;
textout = new DataOutputStream(out);
String val = "要写入的字符串";
textout.writeBytes(val);
textout.close();
out.close();
文件的内容读到string中:
FileInputStream in = null;
in = new FileInputStream("C:\a.txt");
int num = in.available();
byte[] buffer = new byte[num];
in.read(buffer);
String str = new String(buffer,0);
写:
PrintWriter out = new PrintWriter(new FileOutputStream("a.txt"));
out.println("xxxx");
out.close();
读:
BufferedReader in = new BufferedReader(
new InputStreamReader(
new FileInputStream("a.txt")));
String s = null;
while((s=in.readLine())!=null) System.out.println(s);