Simple CSV Reader in Java: Explanation & Practice

Problem summary

Read a CSV file and display data in formatted manner.

Starter code

import java.io.*;

public class Main {
    public static void main(String[] args) {
        // Read CSV and format output
        // Each row: field1 | field2 | field3
    }
}

Expected output and test cases

• Formatted CSV

  John | 25 | Engineer
  Jane | 30 | Designer

• Single row

  A | B | C

• Two columns

  X | Y
  Z | W

Hints

1. Split each line by comma
2. Trim whitespace from fields
3. Join with | separator

Related File I/O exercises

• Practice Sort File Lines in Java
• Practice File Statistics in Java
• Practice Find and Replace in File in Java

Practice all File I/O exercises · Run this idea in the Java compiler