AWT BasicStroke類
BasicStroke的類聲明中的顏色默認sRGB顏色空間或顏色的任意顏色空間中的顏色確定。
類的聲明
以下是聲明的java.awt.BasicStroke類：
public class BasicStroke extends Object implements Stroke
字段域
以下是java.awt.geom.Arc2D類字段：
static int CAP_BUTT -- 結束未封閉的子路徑和虛線線段與不加裝飾。
static int CAP_ROUND -- 結束未封閉的子路徑和虛線線段與一個圓形的裝飾，有一個半徑等於一半的筆寬。
static int CAP_SQUARE -- 結束未封閉的子路徑和虛線段的具有方形的突起，伸出的端部的線寬度的一半的距離等於的段。
static int JOIN_BEVEL -- 加入通過其廣泛的輪廓用直線段連接外眼角的路徑段。
static int JOIN_MITER -- 加入路徑段延伸的外邊緣，直到他們滿足。
static int JOIN_ROUND -- 加入路徑段，通過舍入的拐角處的半徑處的線寬度的一半。
類的構造函數
S.N.
構造函數與說明
1
BasicStroke()
Constructs a new BasicStroke with defaults for all attributes.
2
BasicStroke(float width)
Constructs a solid BasicStroke with the specified line width and with default values for the cap and join styles.
3
BasicStroke(float width, int cap, int join)
Constructs a solid BasicStroke with the specified attributes.
4
BasicStroke(float width, int cap, int join, float miterlimit)
Constructs a solid BasicStroke with the specified attributes.
5
BasicStroke(float width, int cap, int join, float miterlimit, float[] dash, float dash_phase)
Constructs a new BasicStroke with the specified attributes.
類方法
S.N.
方法和說明
1
Shape createStrokedShape(Shape s)
Returns a Shape whose interior defines the stroked outline of a specified Shape.
2
boolean equals(Object obj)
Tests if a specified object is equal to this BasicStroke by first testing if it is a BasicStroke and then comparing its width, join, cap, miter limit, dash, and dash phase attributes with those of this BasicStroke.
3
float[] getDashArray()
Returns the array representing the lengths of the dash segments.
4
float getDashPhase()
Returns the current dash phase.
5
int getEndCap()
Returns the end cap style.
6
int getLineJoin()
Returns the line join style.
7
float getLineWidth()
Returns the line width.
8
float getMiterLimit()
Returns the limit of miter joins.
9
int hashCode()
Returns the hashcode for this stroke.
繼承的方法
這個類繼承的方法從以下類：
- java.lang.Object
BasicStroke 實例
選擇使用任何編輯器創建以下java程序 D:/ > AWT > com > yiibai > gui >
AWTGraphicsDemo.java
package com.yiibai.gui; import java.awt.*; import java.awt.event.*; import java.awt.geom.*; public class AWTGraphicsDemo extends Frame { public AWTGraphicsDemo(){ super("Java AWT Examples"); prepareGUI(); } public static void main(String[] args){ AWTGraphicsDemo awtGraphicsDemo = new AWTGraphicsDemo(); awtGraphicsDemo.setVisible(true); } private void prepareGUI(){ setSize(400,400); addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent windowEvent){ System.exit(0); } }); } @Override public void paint(Graphics g) { Graphics2D g2 = (Graphics2D)g; g2.setStroke(new BasicStroke(3.0f)); g2.setPaint(Color.blue); Rectangle2D shape = new Rectangle2D.Float(); shape.setFrame(100, 150, 200,100); g2.draw(shape); Rectangle2D shape1 = new Rectangle2D.Float(); shape1.setFrame(110, 160, 180,80); g2.setStroke(new BasicStroke(1.0f)); g2.draw(shape1); Font plainFont = new Font("Serif", Font.PLAIN, 24); g2.setFont(plainFont); g2.setColor(Color.DARK_GRAY); g2.drawString("TutorialsPoint", 130, 200); } }
編譯程序，使用命令提示符。進入到D:/> AWT，然後鍵入以下命令。
D:AWT>javac comyiibaiguiAwtGraphicsDemo.java
如果沒有錯誤出現，這意味着編譯成功。使用下面的命令來運行程序。
D:AWT>java com.yiibai.gui.AwtGraphicsDemo
驗證下面的輸出
