File APIs

An easy way to read and write files is introduced in Java 11, simply by providing new overloaded ways without writing much boilerplate code.

Examine the below given example:

ApiTester.java

import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;

public class APITester {
   public static void main(String[] args) {
      try {
         Path tempFilePath = Files.writeString(
            Path.of(File.createTempFile("tempFile", ".tmp").toURI()),
            "Welcome to intellinuts.com", 
            Charset.defaultCharset(), StandardOpenOption.WRITE);

         String fileContent = Files.readString(tempFilePath);

         System.out.println(fileContent);
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

Output

Welcome to intellinuts.com