Java program to count number of files in a folder

For this purpose, we will use the length property of java which is used to find the length of arrays. You can also write the above code much more efficiently in the following way performing all the important operations in a single line of code. Now you may have noticed that I have used the length variable instead of the length method in the above code, the reason is that the length variable comes under the array class, and it returns the size of the array on the other hand length method is under the String class and it is used to find the number of characters in the string.

InputStreamReader package. It creates an InputStreamReader that uses the default charset. BufferedReader Reader in : This function is present under the java.

BufferedReader package. It creates a buffering character-input stream that uses a default-sized input buffer. Skip to content.

Change Language. Related Articles. Table of Contents. Improve Article. Save Article. Like Article. String line;. Attention reader! What did I do wrong? If reader. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to count the amount of integers in a textfile Java? Ask Question. Asked 5 years, 11 months ago.

Active 5 years, 11 months ago. Viewed 5k times. My code is: import java. Improve this question. Whymarrh Run Run 21 1 1 silver badge 5 5 bronze badges. You'll need to reset the Scanner before you can re-read the file. You might consider doing it all within a single loop and discard the result when there an odd number of results — MadProgrammer.