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How can I pull a random line from a text file in java?
I want to pull a random line from a text file rather than use inputFile.nextLine());
1 Answer
- A conscienceLv 63 years ago
A computer always reads a file sequentially. Even if you tell it to read from the end, it is actually scanning from the beginning to the end under the hood.
If you want to choose a random line from a text file, you will need to read in all the lines and store them in a data structure. For example you can make a String[] array where each element is a line you read from the file. Then you can generate a random array index to choose a random line.
