类是什么意思，类的意思是什么

本文目录一览

1，类的意思是什么
2，类是什么意思
3，有教无类中的类是什么意思
4，生产品类是什么意思
5，编程里面的类和方法是什么意思
6，java里的类和对象分别是什么意思
7，Java类的定义

1，类的意思是什么

几把

类的意思是什么

2，类是什么意思

　　类　　【字义】：很多相似事物的综合：种类相似，好像：类同。

类是什么意思

3，有教无类中的类是什么意思

种类的意思~~~~~~~~（……）类别也就是不同的种类这是单纯意思而这个词中就是指不同的人类别的意思，指的是什么人都可以接受教育

有教无类中的类是什么意思

4，生产品类是什么意思

产品类型是指某一品牌产品类别，具体指把产品进行归类。例如：我国汽车产品类别：我国汽车法规标准中大致有以下两个分类标准: 1、汽车分为L类、M类、N类、O类汽车 L类指两轮或三轮车(如摩托车等)；

5，编程里面的类和方法是什么意思

类是一个抽象的集合，抽象的意思是把一些事物的公共部分提取出来放在一个集合里面。在编程里类是指一组相同的属性和功能的一个抽象集合，统称为成员。方法是一个过程，方法也属于类里面的一个成员（功能），方法是一个具体的执行过程，而类什么也做不了，它仅仅是一个概念，就好像人类什么也做不了，人才能做事情，做的事情的过程就是一个方法。

6，java里的类和对象分别是什么意思

marry是一个人 marry 就是一个具体的人而通常我们说人时，并不是说 marry 但是如果谁不知道什么是人，你可以告诉他，像marry那样的就是人了所以：marry就是人这个类的一个具体的对象（也叫实例）要有marry（对象），首先得有人这个类（可以理解为类型），再 new 一个人才行，然后你可以把给这个 new 出来的人一个名字，比如marry。以后大家说到marry时，就是指的这个新人了，然而，marry始终是属于人的类型。当然，你还可以说他是生物，或是女人，这就关系到继承了

7，Java类的定义

package java.lancs ;/** * Graphics objects for practical classes (Java 1.1 version) * @author Roger Garside/Richard Cardoe * @version Last Rewritten: 24/Sept/97 */import java.awt.* ;import java.awt.event.* ;/* * class to hold details about the shape to draw */class BasicShape // name of the shape - RECTANGLE, OVAL, etc. int shape ; // dimensions of the shape int x, y, w, h ; // colour of the shape Color colour ; // constructor to initialise the variables to default values public BasicShape() shape = -1 ; x = -1 ; y = -1 ; w = -1 ; h = -1 ; colour = Color.green ; } // end of constructor method // constructor to initialise the variables to specifier values public BasicShape(int sh, int x1, int y1, int w1, int h1, Color col) shape = sh ; x = x1 ; y = y1 ; w = w1 ; h = h1 ; colour = col ; } // end of constructor method } // end of class BasicShape/* * a canvas to draw on */class BasicCanvas extends Canvas BasicGraphics parent ; // constructor method public BasicCanvas(BasicGraphics p) parent = p ; } // end of constructor method // called when class is initialised to put window on the screen // or when window needs to be redrawn public void paint(Graphics g) Dimension d = getSize() ; int cx = d.width / 2, cy = d.height /2 ; g.setColor(Color.black) ; g.drawRect(1, 1, d.width - 3, d.height - 3) ; int yy = 25 ; while (yy < d.height) if (yy % 100 == 0) g.drawLine(1, yy, 11, yy) ; g.drawLine(d.width - 13, yy, d.width - 3, yy) ; } else g.drawLine(1, yy, 6, yy) ; g.drawLine(d.width - 8, yy, d.width - 3, yy) ; } yy += 25 ; } int xx = 25 ; while (xx < d.width) if (xx % 100 == 0) g.drawLine(xx, 1, xx, 11) ; g.drawLine(xx, d.height - 13, xx, d.height - 3) ; } else g.drawLine(xx, 1, xx, 6) ; g.drawLine(xx, d.height - 8, xx, d.height - 3) ; } xx += 25 ; } for (int i = 0 ; i < parent.noOfShapes ; i++) g.setColor(parent.shapeList[i].colour) ; if (parent.shapeList[i].shape == BasicGraphics.RECTANGLE) g.drawRect(parent.shapeList[i].x, parent.shapeList[i].y, parent.shapeList[i].w, parent.shapeList[i].h) ; } else if (parent.shapeList[i].shape == BasicGraphics.FILLED_RECTANGLE) g.fillRect(parent.shapeList[i].x, parent.shapeList[i].y, parent.shapeList[i].w, parent.shapeList[i].h) ; } else if (parent.shapeList[i].shape == BasicGraphics.OVAL) g.drawOval(parent.shapeList[i].x, parent.shapeList[i].y, parent.shapeList[i].w, parent.shapeList[i].h) ; } else if (parent.shapeList[i].shape == BasicGraphics.FILLED_OVAL) g.fillOval(parent.shapeList[i].x, parent.shapeList[i].y, parent.shapeList[i].w, parent.shapeList[i].h) ; } else if ((parent.shapeList[i].shape == BasicGraphics.TRIANGLE) || (parent.shapeList[i].shape == BasicGraphics.FILLED_TRIANGLE)) int x1 = parent.shapeList[i].x ; int y1 = parent.shapeList[i].y ; int w1 = parent.shapeList[i].w ; int h1 = parent.shapeList[i].h ; Polygon p = new Polygon() ; p.addPoint(x1, y1 + h1) ; p.addPoint(x1 + w1, y1 + h1) ; p.addPoint(x1 + (w1 / 2), y1) ; p.addPoint(x1, y1 + h1) ; if (parent.shapeList[i].shape == BasicGraphics.TRIANGLE) g.drawPolygon(p) ; else g.fillPolygon(p) ; } } } // end of method paint } // end of class BasicCanvas/* * class to draw simple shapes in a window */ public class BasicGraphics extends Frame implements ActionListener // maximum width of window private static final int MAX_WIDTH = 600 ; // maximum height of window private static final int MAX_HEIGHT = 400 ; /** * definition of a rectangle shape */ public static final int RECTANGLE = 1 ; /** * definition of an oval shape */ public static final int OVAL = 2 ; /** * definition of a triangle shape */ public static final int TRIANGLE = 3 ; /** * definition of a filled-in rectangle */ public static final int FILLED_RECTANGLE = 4 ; /** * definition of a filled-in oval */ public static final int FILLED_OVAL = 5 ; /** * definition of a filled-in triangle */ public static final int FILLED_TRIANGLE = 6 ; BasicShape[] shapeList = new BasicShape[50]; int noOfShapes = 0; private BasicShape newShape = new BasicShape(); private Button quit ; /** * constructor to lay out the window */ public BasicGraphics() setTitle("BasicGraphics Window") ; setSize(MAX_WIDTH, MAX_HEIGHT + 50) ; BasicCanvas c = new BasicCanvas(this) ; add("Center", c) ; Panel p = new Panel() ; p.setLayout(new FlowLayout()) ; quit = new Button("Quit") ; p.add(quit) ; quit.addActionListener(this) ; add("South", p) ; } // end of constructor method /** * handles button depression events, etc. */ public void actionPerformed(ActionEvent event) dispose() ; System.exit(0) ; } // end of method actionPerformed /** * set the type of shape that you want to draw * @param shape e.g. BasicGraphics.RECTANGLE */ public void setShape(int shape) if ((shape != RECTANGLE) && (shape != FILLED_RECTANGLE) && (shape != OVAL) && (shape != FILLED_OVAL) && (shape != TRIANGLE) && (shape != FILLED_TRIANGLE)) System.err.println("This is not a valid shape"); System.exit(1); } newShape.shape = shape ; } // end of method setShape /** * set the dimensions of the shape that you want to draw * @param x x-coordinate of the top left hand corner of the bounding * rectangle * @param y y-coordinate of the top left hand corner of the bounding * rectangle * @param w width of the bounding rectangle * @param h height of the bounding rectangle */ public void setDimensions(int x, int y, int w, int h) if (newShape.shape == -1) System.err.println("You need to set the shape first"); System.exit(1); } if ((x < 5) || (y < 5) || (w < 5) || (h < 5) || (x + w > MAX_WIDTH - 5) || (y + h > MAX_HEIGHT - 5)) System.err.println("Invalid dimensions supplied") ; System.exit(1); } newShape.x = x ; newShape.y = y ; newShape.w = w ; newShape.h = h ; } // end of method setDimensions /** * set the colour of the shape that you want to draw * @param colour the Color type (Color.red, Color.blue, etc.) */ public void setColour(Color colour) if (newShape.x == -1) System.err.println("You need to set the dimensions first"); System.exit(1); } newShape.colour = colour ; shapeList[noOfShapes] = new BasicShape(newShape.shape, newShape.x, newShape.y, newShape.w, newShape.h, newShape.colour) ; noOfShapes++ ; newShape = new BasicShape() ; } // end of method setColour/** * draws the window on the screen with the specified shapes */ public void draw() setVisible(true) ; } // end of method draw } // end of class BasicGraphics

class aprivate l int ; //长private w int ; //宽public int getValue(int l,int w) return l*w; //计算其面积}}……晕不想写来。这个是作业题。帮你写了太不道德了，

point point=new point(-1,-1); point.setx(0); point.sety(0); point.move(3); point.move(4); 能明白什么意思吧？简略写的 x和y要保证不是负数，x或y值为0时，再向边界移动是否会出现异常