import java.util.HashMap;
     import java.util.Map;
     import org.yaml.snakeyaml.Yaml;
     
     class dump_load {
         public static void main(String[] args) {
             Map<String, Object> object1 = new HashMap<String, Object>();
             object1.put("name", "Ingy dot Net");
             object1.put("number", 42);
             object1.put("needs", new String[] { "sex", "drugs", "rock and roll" });
     
             Yaml yaml = new Yaml();
             String yaml1 = yaml.dump(object1);
             Object object2 = yaml.load(yaml1);
             String yaml2 = yaml.dump(object2);
     
             if (yaml1.equals(yaml2)) {
                 System.out.println(yaml1);
             }
             else {
                 System.out.println(yaml1 + "!=\n" + yaml2);
             }
         }
     }