You have syntax error in your program , try this :
public class cn {
public static void main(String[] args) {
java.io.File f;
java.io.File listroot = new java.io.File("c:/");
java.io.File[] files = listroot.listFiles();
System.out.println("Print root files from c:");
for (java.io.File file : files) {
if (file.isDirectory())
continue;
System.out.println(file.getPath());
}
}
}
Above program working in Eclipse ide.