Reading text file line by line in java

Learn more. Asked 8 years, 6 months ago. Active 3 years, 10 months ago. Viewed 65k times. Improve this question. Andrew Thompson k 40 40 gold badges silver badges bronze badges. Subayan Subayan 1 1 gold badge 1 1 silver badge 7 7 bronze badges. See this answer: stackoverflow. Add a comment. Active Oldest Votes.

Improve this answer. Community Bot 1 1 1 silver badge. In the output, you can see the last line is a list. Use a RandomAccessFile read mode and readLine method to read file line by line.

Answer : Using Files Class methods to read text line by line will be a very easy way to do it. Just convert the list to Array as below code. All Java read file line by line are in Java 11, so it may change on different from Java 9 or 10 or upgraded versions. Your email address will not be published. Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam.

Let us discuss each of the above methods to a deeper depth and most importantly by implementing them via a clean java program. Method 1: Using BufferedReader class This method reads text from a character-input stream. It does buffer for efficient reading of characters, arrays, and lines. The buffer size may be specified, or the default size may be used.

The default is large enough for most purposes. In general, each read request made of a Reader causes a corresponding read request to be made of the underlying character or byte stream. The constructors of this class assume that the default character encoding and the default byte-buffer size are appropriate. Constructors defined in this class are as follows:.

A Scanner breaks its input into tokens using a delimiter pattern, which by default matches whitespace. The resulting tokens may then be converted into values of different types using the various next methods.

File; import java. Skip to content. Change Language.