Description: Create an application AddCircles that displays a panel. This panel will contain two buttons (one for red and one for blue). When the user clicks on a button, change a variable called currentColor to that particular color.
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实验10\.classpath
......\.project
......\.settings\org.eclipse.jdt.core.prefs
......\bin\ChangeBallColor.class
......\...\MainFrame.class
......\...\MyPanel.class
......\src\ChangeBallColor.java
......\...\MainFrame.java
......\...\MyPanel.java
......\.settings
......\bin
......\src
实验10
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