To the left of the tree dynamically builds up to the right side of the tree, the tree to add delete will not affect the tree on the left and right sides of the nodes of the tree, but the same attribute.

treeOption
..........\.classpath
..........\.myeclipse
..........\.mymetadata
..........\.project
..........\.settings
..........\.........\.jsdtscope
..........\.........\org.eclipse.jdt.core.prefs
..........\.........\org.eclipse.wst.jsdt.ui.superType.container
..........\.........\org.eclipse.wst.jsdt.ui.superType.name
..........\src
..........\...\com
..........\...\...\tree
..........\...\...\....\util
..........\...\...\....\....\AchieveItemTreeInfo.java
..........\...\...\....\....\CreateTree.java
..........\...\...\....\....\Test.java
..........\...\...\....\....\TreeUtil.java
..........\WebRoot
..........\.......\index.jsp
..........\.......\META-INF
..........\.......\........\MANIFEST.MF
..........\.......\WEB-INF
..........\.......\.......\classes
..........\.......\.......\.......\com
..........\.......\.......\.......\...\tree
..........\.......\.......\.......\...\....\util
..........\.......\.......\.......\...\....\....\AchieveItemTreeInfo.class
..........\.......\.......\.......\...\....\....\CreateTree.class
..........\.......\.......\.......\...\....\....\Test$NodeToLeftActionListener.class
..........\.......\.......\.......\...\....\....\Test$NodeToRightActionListener.class
..........\.......\.......\.......\...\....\....\Test$TreeToLeftActionListener.class
..........\.......\.......\.......\...\....\....\Test$TreeToRightActionListener.class
..........\.......\.......\.......\...\....\....\Test.class
..........\.......\.......\.......\...\....\....\TreeUtil.class
..........\.......\.......\lib
..........\.......\.......\web.xml

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