IO manipulation character streams in Java: FileReader and FileWriter

FileReader and FileWriter Read and write Strings

1  PackageObject.io;2 3 ImportJava.io.BufferedReader;4 ImportJava.io.BufferedWriter;5 ImportJava.io.FileReader;6 ImportJava.io.FileWriter;7 Importjava.io.IOException;8 9  Public classFileWrite {Ten  One      Public Static voidMain (string[] args)throwsIOException { A         //TODO auto-generated Method Stub -FileReader reader=NewFileReader ("D:\\Program Files (x86) \\io\\fileWriter.txt");  -BufferedReader breader=NewBufferedReader (reader); theFileWriter writer=NewFileWriter ("D:\\Program Files (x86) \\io\\fileWriter2.txt"); -BufferedWriter bwriter=NewBufferedWriter (writer); -String content= ""; -         //ReadLine a row of reads +          while((Content=breader.readline ())! =NULL){ -             //\ r \ n line break +Bwriter.write (content+ "\ r \ n"); A         } at         /** - * Order of closing streams: - * When a depends on B, turn off A and then close B - * Flush is performed once the buffered stream is last closed -          */ - reader.close (); in breader.close (); - bwriter.close (); to writer.close (); +          -     } the  *}

Operation Result:

　　

Practice:

1  PackageObject.io;2 3 ImportJava.io.BufferedReader;4 ImportJava.io.BufferedWriter;5 Importjava.io.FileNotFoundException;6 ImportJava.io.FileReader;7 ImportJava.io.FileWriter;8 Importjava.io.IOException;9 Ten  Public classFileWrite2 { One  A      Public Static voidMain (string[] args)throwsIOException { -         //TODO auto-generated Method Stub -FileReader reader=NewFileReader ("D:\\Program Files (x86) \\io\\fileWriter11.txt");  theBufferedReader breader=NewBufferedReader (reader); -FileWriter writer=NewFileWriter ("D:\\Program Files (x86) \\io\\fileWriter22.txt"); -BufferedWriter bwriter=NewBufferedWriter (writer); -String content= ""; +          while((Content=breader.readline ())! =NULL){ -             if(Content.contains ("{title}")){ +Content=content.replace ("{title}", "Holiday"); A             } at             if(Content.contains ("{Description}")){ -Content=content.replace ("{description}", "New Year's Day holiday three days"); -             } -Bwriter.write (content+ "\ r \ n"); -         } -         /** in * Order of closing streams: - * When a depends on B, turn off A and then close B to * Flush is performed once the buffered stream is last closed +          */ - reader.close (); the breader.close (); * bwriter.close (); $ writer.close ();Panax Notoginseng          -     } the  +}

Results:

IO manipulation character streams in Java: FileReader and FileWriter