Field Reflection : Field « Reflection « Java






Field Reflection

       

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;

public class MainClass {
  public static void main(String[] args) {
    String name = "java.util.Date";
    try {
      Class cl = Class.forName(name);
      Class supercl = cl.getSuperclass();
      System.out.println("class " + name);
      System.out.println("Its methods:");
      printFields(cl);
      System.out.println();
    } catch (ClassNotFoundException e) {
      System.out.println("Class not found.");
    }
  }

  public static void printFields(Class cl) {
    Field[] fields = cl.getDeclaredFields();

    for (int i = 0; i < fields.length; i++) {
      Field f = fields[i];
      Class type = f.getType();
      String name = f.getName();
      System.out.print(Modifier.toString(f.getModifiers()));
      System.out.println(" " + type.getName() + " " + name + ";");
    }
  }
}
          
         
    
    
    
    
    
    
  








Related examples in the same category

1.How to set public field objects
2.Class Reflection: field informationClass Reflection: field information
3.Object Reflection: get field valueObject Reflection: get field value
4.Object Reflection: set valueObject Reflection: set value
5.Get field of a class object and set or get its value
6.All Fields Snippet
7.Field modifiers: isSynthetic, isEnumConstant
8.Field with annotations
9.Set private field value
10.Get fields of a class object
11.Get all object accessible public fields
12.Getting the Field Objects of a Class Object: By obtaining a list of all declared fields.
13.Getting the Field Objects of a Class Object: By obtaining a list of all public fields, both declared and inherited.
14.Getting the Field Objects of a Class Object: By obtaining a particular Field object.
15.Get all declared fields from a class
16.Retrieving a Predefined Color by Name
17.Get a variable value from the variable name
18.Fetches all fields of all access types from the supplied class and super classes
19.Checks whether the specified class contains a field matching the specified name.
20.whether given field is a "public static final" constant
21.Process bean properties getter by applying the JavaBean naming conventions.
22.Fetches the property descriptor for the named property of the supplied class
23.Find Field
24.Return a list of all fields (whatever access status, and on whatever superclass they were defined) that can be found on this class.
25.Get all fields of a class.
26.Find field 2
27.Get class field/property
28.Accessible Field Iterator
29.Adds all Fields (from Class.getFields) to the list
30.Retrieve a value from a property
31.Set the value of the field of the object to the given value.
32.Fast Property accessor for a single class.