Read by line
public static void readFile(){
String pathname = "E:/project/java/idea项目/java学习/test.txt";
String line;
try{
FileReader reader = new FileReader(pathname);
BufferedReader br = new BufferedReader(reader);
while ((line=br.readLine())!=null){
System.out.println(line);
}
} catch (IOException e){
e.printStackTrace();
}
}
Write file
public static void writeFile(){
try{
String pathname = "E:/project/java/idea项目/java学习/test.txt";
File writeName = new File(pathname);
FileWriter writer = new FileWriter(writeName);
BufferedWriter out = new BufferedWriter(writer);
out.write("666");
out.write("1\r2\n3");
out.flush(); // 把缓存区内容压入文件
} catch (IOException e){
e.printStackTrace();
}
}
document content:
