「java矩形等分」java画矩形
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本文目录一览：
- 1、java中关于矩形类
- 2、Java 编写一个矩形类Rect
- 3、java 编写一个矩形类 rect 要求如下：
- 4、Java编写一个矩形类,至少包含以下方法：
- 5、编写一个JAVA程序，描写一个矩形类，并输出某个矩形的长，宽，面积。具体描述如下？
- 6、用JAVA创建一个矩形类Rectangle
java中关于矩形类
public class Rectangle2 {
// 属性：
private double m_height;
private double m_width;
private double m_x1;
private double m_y1;
private double m_x2;
private double m_y2;
private boolean m_isRectangle;
// 操作：
public Rectangle2() {
this(0.0, 0.0, 0.0, 0.0);
}
public Rectangle2(double aX1, double aY1, double aX2, double aY2) {
setCoordinates(aX1, aY1, aX2, aY2);
}
public void setCoordinates(double aX1, double aY1, double aX2, double aY2) {
m_x1 = aX1;
m_y1 = aY1;
m_x2 = aX2;
m_y2 = aY2;
setHeight();
setWidth();
isRectangle();
}
public boolean isRectangle() {
if ((m_height = 0 m_width = 0) (m_x1 != m_x2 || m_y1 != m_y2)) {
System.err.println("输入的坐标构成一个矩形");
m_isRectangle = true;
} else {
if ((m_x1 == m_x2 m_y1 != m_y2)
|| (m_x1 != m_x2 m_y1 == m_y2)) {
System.err.println("输入的坐标构成一条直线");
} else if (m_x1 == m_x2 m_y1 == m_y2) {
System.err.println("输入的坐标构成一点");
}
m_isRectangle = false;
}
return m_isRectangle;
}
public boolean isSquare() {
return isRectangle() m_height == m_width;
}
private void setHeight() {
double side1 = Math.abs(m_x1 - m_x2);
double side2 = Math.abs(m_y1 - m_y2);
m_height = side1 = side2 ? side1 : side2;
}
private void setWidth() {
double side1 = Math.abs(m_x1 - m_x2);
double side2 = Math.abs(m_y1 - m_y2);
m_width = side1 = side2 ? side1 : side2;
}
public double getHeight() {
return m_height;
}
public double getWidth() {
return m_width;
}
public double perimeter() {
return 2 * (m_height + m_width);
}
public double area() {
return m_height * m_width;
}
}
public class Rectangle2Test {
public static void main(String[] args) {
// TODO Auto-generated method stub
Rectangle2 rect1 = new Rectangle2();
System.err.println(rect1.isRectangle());
System.err.println(rect1.isSquare());
System.err.println(rect1.getHeight());
System.err.println(rect1.getWidth());
System.err.println(rect1.perimeter());
System.err.println(rect1.area());
Rectangle2 rect2 = new Rectangle2(22, 33, 66, 99);
System.err.println(rect2.isRectangle());
System.err.println(rect2.isSquare());
System.err.println(rect2.getHeight());
System.err.println(rect2.getWidth());
System.err.println(rect2.perimeter());
System.err.println(rect2.area());
}
}
Java 编写一个矩形类Rect
public class Rect {
private double length;//矩形的长
private double width;//矩形的宽
public Rect() {}//默认构造器
public Rect(double length,double width) {
this.length = length;
this.width = width;
}
/**
* 取得矩形的面积
* */
public double getArea(){
return this.getLength() * this.getWidth();
}
/**
* 取得矩形的周长
* */
public double getPerimeter(){
return (this.getLength() + this.getWidth()) * 2;
}
/**
* 取得矩形的面积，需传入矩形长与宽
* */
public double getArea(double length,double width){
return length * width;
}
/**
* 取得矩形的周长，需传入矩形长与宽
* */
public double getPerimeter(double length,double width){
return (length + width) * 2;
}
public double getLength() {
return length;
}
public void setLength(double length) {
this.length = length;
}
public double getWidth() {
return width;
}
public void setWidth(double width) {
this.width = width;
}
}
java 编写一个矩形类 rect 要求如下：
public class Rect{
private int length;
private int width;
private int startX;
private int startY
public Rect(){}
public Rect(int length,int width){
this.length = length;
this.width = width;
}
public Rect(int length,int width,int startX,int startY){
this.length = length;
this.width = width;
this.startX = startX;
this.startY = startY;
}
//不知道你要什么成员方法,我随便点....
public void louzhuhao(){
System.out.println("楼主好....");
}
public int getLength() {
return length;
}
public void setLength(int length) {
this.length = length;
}
public int getWidth() {
return width;
}
public void setWidth(int width) {
this.width = width;
}
public int getStartX() {
return startX;
}
public void setStartX(int startX) {
this.startX = startX;
}
public int getStartY() {
return startY;
}
public void setStartY(int startY) {
this.startY = startY;
}
}
Java编写一个矩形类,至少包含以下方法：
import java.awt.Point;
public class Rectangle {
private int widthT = 0;
private int heightT = 0;
Point point = new Point();
public Rectangle(int width, int height, int centerX, int centerY) {
widthT = width;
heightT = height;
point.x = centerX;
point.y = centerY;
}
public int width() {
return widthT;
}
public int height() {
return heightT;
}
public int centerX() {
return point.x;
}
public int centerY() {
return point.y;
}
}
麻烦采纳呦~~~亲
编写一个JAVA程序，描写一个矩形类，并输出某个矩形的长，宽，面积。具体描述如下？
// 矩形
public class RectangleDemo {
public static void main(String[] args) {
RectangleDemo demo = new RectangleDemo(12, 32);
System.out.println(demo.getPerimeter());
System.out.println(demo.getArea());
demo = new RectangleDemo();
System.out.println(demo.getArea());
System.out.println(demo.getPerimeter());
demo.setHeight(50);
demo.setWidth(30);
System.out.println(demo.getArea());
System.out.println(demo.getPerimeter());
}
// 求周
public double getPerimeter() {
return (height + width) * 2;
}
// 求面积
public double getArea() {
return height * width;
}
public RectangleDemo(double height, double width) {
this.height = height;
this.width = width;
}
public RectangleDemo() {
this.height = 10;
this.width = 10;
}
private double height;// 高度
private double width;// 宽度
public double getHeight() {
return height;
}
public void setHeight(double height) {
this.height = height;
}
public double getWidth() {
return width;
}
public void setWidth(double width) {
this.width = width;
}
}
编写矩形类RectangleJava程序矩形类两数据员别rLength宽rWidth通getLength()、getWidth()、getArea()别查看矩形、宽面积通setLength()setWidth()重新设置矩形宽
用JAVA创建一个矩形类Rectangle
这个问题是java最基础的了，希望你自己可以好好地看一下书本，上面都是有的，而且自己看书解决，比来这提问有效的多。
关键是自己注意你所需要定义的类有哪些属性，然后按照这些慢慢去写就好了。
关于java矩形等分和java画矩形的介绍到此就结束了，不知道你从中找到你需要的信息了吗 ？如果你还想了解更多这方面的信息，记得收藏关注本站。