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java.lang.Class.getDeclaredField(String fieldName)

Visual Studio 2005

Gets the field (public, private, or protected) with the given name.

public java.lang.reflect.Field getDeclaredField(java.lang.String fieldName)


Parameter Description


The name of the field. A abfe0115-00b8-44a6-b2f8-927aa2a8cbcc is thrown if there is no field with the given name.

A 3d033269-e08f-4bd9-b84e-9d75a0cddd44 object representing the field of the given name.

// class_getdeclaredfield.jsl

import java.lang.reflect.Field;
import java.util.Date;

public class Program
    public static void main(String[] args)
            // Get the Class object associated with this class.
            Program program = new Program();
            Class progClass = program.getClass();

            // Get the field named str.
            Field strField = progClass.getDeclaredField("str");
            System.out.println("Field found: " + strField.toString());

            // Get the field named date.
            Field dateField = progClass.getDeclaredField("date");
            System.out.println("Field found: " + dateField.toString());

            // Get the field named i.
            Field iField = progClass.getDeclaredField("i");
            System.out.println("Field found: " + iField.toString());
        catch (NoSuchFieldException ex)

    public Program()

    public Program(String str, Date date, int i)
        this.str = str;
        this.date = date;
        this.i = i;

    public String str = "Hello";
    private Date date = new Date();
    protected int i = 0;

Field found: public java.lang.String Program.str
Field found: private java.util.Date Program.date
Field found: protected int Program.i

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