A target-typing example in Java 8

TargetTyping.java

public class TargetTyping {
    
  public static void main(String[] args) throws IOException {
    String value = System.getProperty("user.dir");

    File f = new File(value);
        
    //without target typing
    System.out.println("Without target typing example, to find file that ends with xml");
    for(File resFile: f.listFiles((File sf) -> sf.getName().endsWith(".xml"))) {
      System.out.printf("%s%n", resFile.getAbsolutePath());
    }
        
    //simplified expression with target typing
    System.out.println("With target typing example, to find file that ends with xml");
    for(File resFile: f.listFiles(sf -> sf.getName().endsWith(".xml"))) {
      System.out.printf("%s%n", resFile.getAbsolutePath());
    }
        
    //file filter, the instance is inferred as file
    System.out.println("With file filter, to find file/directory that ends with \"src\"");
    FileFilter src = theInstance -> theInstance.getName().endsWith("src");
    
    for(File resFile: f.listFiles(src)) {
      System.out.printf("%s%n", resFile.getAbsolutePath());
    }
        
    //directory filter, the instance is inferred as Path
    System.out.println("With path filter, to find directory that ends with \"src\"");
    DirectoryStream.Filter<Path> anotherFilter = theInstance -> theInstance.endsWith("src");
    Files.newDirectoryStream(f.toPath(), anotherFilter).forEach(p -> System.out.println(p.toString()));
  }
}