whether given field is a "public static final" constant : Modifier « Reflection « Java Tutorial

 * Copyright 2002-2008 the original author or authors.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *      http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;

 * Simple utility class for working with the reflection API and handling
 * reflection exceptions.
 * Only intended for internal use.
 * @author Juergen Hoeller
 * @author Rob Harrop
 * @author Rod Johnson
 * @author Costin Leau
 * @since 1.2.2
public abstract class ReflectionUtils {
   * Determine whether the given field is a "public static final" constant.
   * @param field the field to check
  public static boolean isPublicStaticFinal(Field field) {
    int modifiers = field.getModifiers();
    return (Modifier.isPublic(modifiers) && Modifier.isStatic(modifiers) && Modifier.isFinal(modifiers));

7.12.1.Return true if the integer argument includes the public modifier, false otherwise
7.12.2.Return true if the integer argument includes the private modifier, false otherwise.
7.12.3.Return true if the integer argument includes the protected modifier,false otherwise.
7.12.4.Return true if the integer argument includes the static modifier, false otherwise.
7.12.5.Return true if the integer argument includes the final modifier, false otherwise.
7.12.6.Return true if the integer argument includes the abstract modifier, false otherwise.
7.12.7.Get all object accessible public fields
7.12.8.Overriding Default Access
7.12.9.Listing the Modifiers of a Class Object
7.12.10.Listing the Modifiers of a Member Object: Field, Constructor, and Method are all subclasses of Member.
7.12.11.Set Accessibility
7.12.12.Make AccessibleObject Accessible
7.12.13.Make field accessible, explicitly setting it accessible
7.12.14.whether given field is a "public static final" constant
7.12.15.Gets a method and forces it to be accessible, even if it is not.
7.12.16.AccessController.doPrivileged(new PrivilegedAction() )