Java Char Array Create toClasses(Object[] objs)

Description

to Classes

License

Open Source License

Declaration

public static Class[] toClasses(Object[] objs) throws ClassNotFoundException 

Method Source Code

//package com.java2s;
/* /*ww w . j av a  2 s  . c om*/
 * Copyright(c) 2005 Center for E-Commerce Infrastructure Development, The
 * University of Hong Kong (HKU). All Rights Reserved.
 *
 * This software is licensed under the GNU GENERAL PUBLIC LICENSE Version 2.0 [1]
 * 
 * [1] http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
 */

public class Main {
    public static Class[] toClasses(Object[] objs) throws ClassNotFoundException {
        Class[] classes;
        if (objs == null) {
            classes = new Class[] {};
        } else if (objs instanceof Class[]) {
            classes = (Class[]) objs;
        } else if (objs instanceof String[]) {
            classes = forNames((String[]) objs);
        } else {
            classes = forObjects(objs);
        }
        return classes;
    }

    /**
     * Returns the Class object array associated with the class or interface
     * with the given string name array.
     * 
     * @param classNames the fully qualified names of the desired classes.
     * @return the Class object array for the classes with the specified names.
     * @throws ClassNotFoundException
     */
    public static Class[] forNames(String[] classNames) throws ClassNotFoundException {
        int size = (classNames == null ? 0 : classNames.length);
        Class[] classes = new Class[size];
        for (int i = 0; i < classes.length; i++) {
            classes[i] = Class.forName(classNames[i]);
        }
        return classes;
    }

    /**
     * Returns the Class object array associated with the class or interface
     * with the given object array.
     * 
     * @param objs the objects of the desired classes.
     * @return the Class object array for the classes with the specified
     *         objects.
     */
    public static Class[] forObjects(Object[] objs) {
        int size = (objs == null ? 0 : objs.length);
        Class[] classes = new Class[size];
        for (int i = 0; i < classes.length; i++) {
            classes[i] = (objs[i] == null ? null : objs[i].getClass());
        }
        return classes;
    }
}

Related

1. toClassArray(Object[] params)
2. toClassArray(String[] classNames)
3. toClasses(ClassLoader classLoader, String[] argClassNames)
4. toClasses(final Object... parameters)
5. toClasses(Object[] args)
6. toClassesFromObjects(final Object[] params)