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In my android application i would like to replace my first line of a txt file with some other data.
Is there any way that i can do this.
Please let me know your valuable suggestions.
Thanks in advance 🙂
Due to the nature of Java IO and the disk file system, it is not directly possible to replace an arbitrary “line” of a file without taking the remnant of the file into consideration. You need to fully read and write the file.
The
BufferedReaderandPrintWriterare helpful in this. The former offers areadLine()method and the latter offers aprintln()method (which compensates the fact that thereadLine()eats the newline). Add somebooleanwhich you can use in the loop to determine if the first line has to be processed or not.