A reference type is anything that is a direct or indirect subclass of including interfaces, arrays, and enumerated types.
There are eight primitive types: boolean, byte, short, int, long, char, float, and double. Method 4: tAccessible(true): Allows to access the field irrespective of the access modifier used with the field. A field may be either of primitive or reference type. Returns an object of type Field for the specified field name. It also demonstrates attempting to get a protected field using getField(), which throws an error since getField() can't be used for protected or private fields. Method 3: Class.getDeclaredField(FieldName): Used to get the private field. This is demonstrated in the ClassFieldTest object, which sets and gets a field in FieldTest and also sets and gets a field that FieldTest inherits from ParentFieldTest. In order to access a private field using reflection, you need to know the name of the field than by calling getDeclaredFields(String name) you will get a java. To get the value of a public field, you can call the get() method of the Field object, with the object featuring the field value that you'd like to get as the first parameter. Field field1 obj. There are other 'set' methods for primitive (non-object) field types. Reflection of Fields in Java Using the method of Field Class we can also inspect and modify the various field of the class. You can set the value of the field by calling the set() method on the Field object, where the first parameter is the object that has the field value that you'd like to set, and the second parameter is the value of that field. Simple utility class for working with the reflection API and handling reflection exceptions. Returns the value of the field represented by this Field. public abstract class ReflectionUtils extends Object. Method: public Object get(Object obj) throws IllegalArgumentException, IllegalAccessException.
You can call getField() on the Class object to get a Field object for a public field of the class, including inherited public fields. ReflectionUtils (Spring Framework 5.3.19 API). If you have an object in Java S W, you can get its Class object by calling getClass() on the object.