Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/* 
 * Copyright 2016 Dmitry Avtonomov.
 *
 * 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,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.awt.Component;
import java.awt.Container;

public class Main {
    /**
     * Finds the index of a component in its parent container by iterating over
     * all children.
     * @param component the component must have a parent
     * @return -1 if component is null or has no parent
     */
    public static final int getComponentIndex(Component component) {
        if (component != null && component.getParent() != null) {
            Container c = component.getParent();
            for (int i = 0; i < c.getComponentCount(); i++) {
                if (c.getComponent(i) == component) {
                    return i;
                }
            }
        }
        return -1;
    }
}