如何防止PrintWriter用Java覆盖文件

Question

How can i prevent prinwriter in java from overwriting what's inside of that particular file?

Ex. I have a student.txt file. I already have few names there. After running and modifying this How do I create a file and write to it in Java? whats inside of that file will be overwritten. I just want to add it to the new line.

Also, how can i possibly perform search?

Answer 1

PrintWriter out = new PrintWriter(new FileWriter("student.txt", true));

The true is the append parameter - which indicates whether the FileWriter should append to the file. If it was false it would overwrite existing data in the file.

What do you mean by "how can i possibly perform search"?