netbeans project ,collect multi text file into one,between files , put a "Enter" char

JavaApplication2\build\classes\javaapplication2\Main.class
................\build.xml
................\lib\CopyLibs\org-netbeans-modules-java-j2seproject-copylibstask.jar
................\...\junit\junit-3.8.2-api.zip
................\...\.....\junit-3.8.2.jar
................\...\....._4\junit-4.5-api.zip
................\...\.......\junit-4.5-src.jar
................\...\.......\junit-4.5.jar
................\...\nblibraries.properties
................\manifest.mf
................\nbproject\build-impl.xml
................\.........\genfiles.properties
................\.........\private\private.properties
................\.........\.......\private.xml
................\.........\project.properties
................\.........\project.xml
................\src\javaapplication2\Main.java
................\build\classes\javaapplication2
................\.....\classes
................\lib\CopyLibs
................\...\junit
................\...\junit_4
................\nbproject\private
................\src\javaapplication2
................\build
................\lib
................\nbproject
................\src
................\test
JavaApplication2

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