IOTest
......\.classpath
......\.project
......\.settings
......\.........\org.eclipse.jdt.core.prefs
......\bin
......\...\iotest
......\...\......\IOTest.class
......\...\......\test1.txt
......\src
......\...\iotest
......\...\......\IOTest.java
......\...\......\test1.txt
......\...\......\test2.txt
......\...\......\test4.txt