Get all declared fields from a class : Field « Reflection « Java Tutorial






import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;

public class Main{
  public static void main(String args[]) throws Exception {
    Class c = Class.forName("MyClass");
    System.out.println("\nFields:");
    Field fields[] = c.getDeclaredFields();
    for (Field fld : fields)
      System.out.println(" " + fld);
  }
}
class MyClass {
  private int count;

  MyClass(int c) {
    count = c;
  }

  MyClass() {
    count = 0;
  }

  void setCount(int c) {
    count = c;
  }

  int getCount() {
    return count;
  }

  void showcount() {
    System.out.println("count is " + count);
  }
}








7.4.Field
7.4.1.Recursively get all fields for a hierarchical class tree
7.4.2.Reflect All
7.4.3.System class reflection
7.4.4.Get all declared fields from a class
7.4.5.Getting the Field Objects of a Class Object: By obtaining a list of all declared fields.
7.4.6.Getting the Field Objects of a Class Object: By obtaining a list of all public fields, both declared and inherited.
7.4.7.Getting the Field Objects of a Class Object: By obtaining a particular Field object.
7.4.8.Reflection, Introspection, and Naming
7.4.9.Get the name of a primitive type
7.4.10.Getting and Setting the Value of a Field (assumes that the field has the type int)
7.4.11.Retrieving a Predefined Color by Name
7.4.12.Get a variable value from the variable name
7.4.13.Return a list of all fields (whatever access status, and on whatever superclass they were defined) that can be found on this class.
7.4.14.Checks whether the specified class contains a field matching the specified name.
7.4.15.Return Retrurns the Type of the given Field or Method