Java Reflection Field Set setField(Object instance, String fieldName, Object value)

Description

Sets the value of the fieldName in a given instance by reflection.

License

Open Source License

Declaration

public static void setField(Object instance, String fieldName, Object value)
        throws NoSuchFieldException, IllegalAccessException 

Method Source Code

//package com.java2s;
/*/*from  w  w  w . j  av a 2  s. c om*/
 * TestUtilities.java 16 mai 07
 *
 * Copyright (c) 2007 Emmanuel PUYBARET / eTeks <info@eteks.com>. All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

import java.lang.reflect.Field;

public class Main {
    /**
     * Sets the value of the <code>fieldName</code> 
     * in a given <code>instance</code> by reflection.
     */
    public static void setField(Object instance, String fieldName, Object value)
            throws NoSuchFieldException, IllegalAccessException {
        Field field = instance.getClass().getDeclaredField(fieldName);
        field.setAccessible(true);
        field.set(instance, value);
    }
}

Related

1. setField(final Object obj, final String name, final Object value)
2. setField(final Object obj, final String variableName, final Object variableValue)
3. setField(final Object object, final String name, final Object value)
4. setField(final Object parent, final String name, final Object obj)
5. setField(java.lang.Object toObj, String tcFieldName, java.lang.Object toNewValue)
6. setField(Object instance, String name, Object obj)
7. setField(Object instance, String sField, Object value)
8. setField(Object item, Field f, Object value)
9. setField(Object o, String fieldName, Object inject)