Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2012 www.amsoft.cn
 * 
 * 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.
 */

public class Main {

    public static boolean pointAtELine(double x, double y, double x1, double y1, double x2, double y2) {
        double result = (x - x1) * (y2 - y1) - (y - y1) * (x2 - x1);
        if (result == 0) {
            if (x >= Math.min(x1, x2) && x <= Math.max(x1, x2) && y >= Math.min(y1, y2) && y <= Math.max(y1, y2)) {
                return true;
            } else {
                return false;
            }
        } else {
            return false;
        }
    }
}