local classをほかのメソッドから利用する

interface SampleInterface{
    void method();
}
public class Outer {
  public static void main(String[] args) {
    Outer o = new Outer();
    o.method().method();  
  }
  SampleInterface method() {
      String name = "sato";
      class SampleLocalClass implements SampleInterface {
          @Override
          public void method() {
              System.out.println("name:" + name);
          }
      }
      return new SampleLocalClass();
  }
}

name:sato