How to write to a file line by line using Apache Commons-io API in Java ?.

Program to demonstrate how to write to a file line by line using Apache Commons-io API in Java.

package com.hubberspot.apache.commons.examples;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import org.apache.commons.io.FileUtils;

public class WriteContentsToFile {

    public static void main(String[] args) {

        Collection< String > welcome = new ArrayList< String >();
        welcome.add("Welcome to Hubberspot.com");
        welcome.add("Its a site for Java developers.");
        welcome.add("Learn Java by Examples.");
        welcome.add("Everything you want to know about Java.");
        welcome.add("Tutorials, Source Codes, SCJP, SCWCD, Frameworks,");
        welcome.add("Java EE and Design Patterns.");
        
        File file = new File("D:/hubberspot/welcome.txt");
        
        try {
            
            FileUtils.writeLines(file, welcome);
        
        } catch (IOException e) {
           
            e.printStackTrace();
        }

    }

}

Output of the program :

How to clean contents of a directory using Apache commons-io API in Java ?

Program to demonstrate how to clean contents of a directory using Apache commons-io API in Java.

package com.hubberspot.apache.commons.examples;

import java.io.File;
import java.io.IOException;

import org.apache.commons.io.FileUtils;

public class CleanDirectoryDemo {

    public static void main(String[] args) {

        // Create a File object and pass path of the directory
        // where files needs to be cleaned
        File file = new File("D:/files");

        // FileUtils class of org.apache.commons.io
        // has a method by name cleanDirectory() which takes in
        // the directory where files need to be 
        // cleaned.

        try {

            FileUtils.cleanDirectory(file);

        } catch (IOException e) {
            
            e.printStackTrace();
        }

    }

}