Description: First, create a drawing board, then you can draw a straight line in the above and more.
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Lesson9
.......\.classpath
.......\.project
.......\bin
.......\...\java.policy.applet
.......\...\lesson9
.......\...\.......\DrawingPanel.class
.......\...\.......\Test.class
.......\...\.......\TestGraphics$ButtonHandler.class
.......\...\.......\TestGraphics$ItemHandler.class
.......\...\.......\TestGraphics.class
.......\...\lesson9.TestGraphics1257740400836.html
.......\src
.......\...\lesson9
.......\...\.......\DrawingPanel.java
.......\...\.......\Test.java
.......\...\.......\TestGraphics.java
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