How to iterate through an object when it is not an array type

Question

My object LabOrder contains data that cannot locate with array index. What I want to do is print the non-null values in the object like name = John. How can I iterate through that non null values and print?

Answer 1

You could use reflection to iterate over the object's fields:

Field[] fields = obj1.getClass().getDeclaredFields();

for (Field field : fields) {
    field.setAccessible(true);
    String name = field.getName();
    Object value = field.get(obj1);
    if (value != null) {
        System.out.println(name + " = " + value);
    }
}