NQueen
......\.classpath
......\.project
......\.settings
......\.........\org.eclipse.jdt.core.prefs
......\bin
......\...\Nqueen$PoliceListen.class
......\...\Nqueen$PoliceListen1.class
......\...\Nqueen.class
......\...\Nqueen2$PoliceListen.class
......\...\Nqueen2$PoliceListen1.class
......\...\Nqueen2.class
......\...\Queen.class
......\src
......\...\Nqueen.java
......\...\Nqueen2.java
......\...\Queen.java