Android example source code file (Point.java)

This example Android source code file (Point.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

override, point, string

The Point.java Android example source code

/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * 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.
 */

package android.graphics;


/**
 * Point holds two integer coordinates
 */
public class Point {
    public int x;
    public int y;

    public Point() {}

    public Point(int x, int y) {
        this.x = x;
        this.y = y;
    }

    public Point(Point src) {
        this.x = src.x;
        this.y = src.y;
    }

    /**
     * Set the point's x and y coordinates
     */
    public void set(int x, int y) {
        this.x = x;
        this.y = y;
    }

    /**
     * Negate the point's coordinates
     */
    public final void negate() {
        x = -x;
        y = -y;
    }

    /**
     * Offset the point's coordinates by dx, dy
     */
    public final void offset(int dx, int dy) {
        x += dx;
        y += dy;
    }

    /**
     * Returns true if the point's coordinates equal (x,y)
     */
    public final boolean equals(int x, int y) {
        return this.x == x && this.y == y;
    }

    @Override public boolean equals(Object o) {
        if (o instanceof Point) {
            Point p = (Point) o;
            return this.x == p.x && this.y == p.y;
        }
        return false;
    }

    @Override public int hashCode() {
        return x * 32713 + y;
    }

    @Override public String toString() {
        return "Point(" + x + ", " + y+ ")";
    }
}