Solve the problem that filewriter writes text without newline


Filewriter writes text without wrapping

String str= “an opponent who can’t be modified \ R \ nwill bring out warmth forever behind \ R \ nalways wordy and always concerned \ R \ nit’s too guilty to know how to cherish”;


Previously, I found that the written text did not wrap at all. What should I do? I changed it to \r\n wrap.

Precautions for using filewriter

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When using filewriter

1. If the specified file does not exist, it will be automatically created

2. If the specified file exists, the write will be overwritten

3. If you do not want to overwrite writing, but want to append, then use another construction method of overload situation

public FileWriter(String fileName , boolean append); If the second parameter is true, it will be written additionally
public class dwmo1 {
public static void main(String[] args) throws IOException {
FileWriter fw=new FileWriter(“file01.txt”,true);// create
fw.write(“java”);// write
fw.close();// shut

The above is my personal experience. I hope I can give you a reference, and I hope you can support developeppaer.

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