Read input from file java scanner

We can also construct a Scanner that produces values scanned from the specified file. This is demonstrated below using the try-with-resources block to automatically takes care of scanner.

Read all text from a file into a String in Java. Average rating 4. Vote count: No votes so far! Be the first to rate this post. Primary Primary. Vrezh Gulyan Vrezh Gulyan 3 3 silver badges 6 6 bronze badges. You need the specify the exact filename, including the file extension, e.

The file needs to be in the same directory as the executable if you want to refer to it without any kind of explicit path. While we're at it, you need to check for an int before reading an int.

It is not safe to check with hasNextLine and then expect an int with nextInt. You should use hasNextInt to check that there actually is an int to grab. How strictly you choose to enforce the one integer per line rule is up to you, of course. Iskar Jarak Iskar Jarak 4, 4 4 gold badges 35 35 silver badges 60 60 bronze badges. Thomas Wouters Thomas Wouters 63 1 1 silver badge 8 8 bronze badges.

Avijit Avijit 11 2 2 bronze badges. Rajesh Guptan Rajesh Guptan 1 1 silver badge 2 2 bronze badges. Kyle Falconer Kyle Falconer 7, 5 5 gold badges 48 48 silver badges 64 64 bronze badges. Paths as well. Amir Maleki Amir Maleki 2 2 silver badges 12 12 bronze badges. Since this doesn't answer the question, it's a better fit for a comment.

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Writing code in comment? Please use ide. Load Comments. What's New. Most popular in Java. Most visited in School Programming. We use cookies to ensure you have the best browsing experience on our website. In this Java program, we are reading User Input in form of String using Scanner's nextLine method and numbers particular integer using nextInt method of Scanner.

The scanner is created by passing System. Check out these free Java Programming courses to learn more about Scanner and other fundamental Java classes. That's all on How to read user input using Scanner in Java program. The scanner allows you to read various types of input directly from the User without extra conversion e. Other Java tutorials from java Difference between abstract class and interface in Java.