Java I/O - 如何检查File对象是否指向绝对路径名

isAbsolute() returns true if the File object refers to an absolute pathname, and false otherwise. 



 
import java.io.File;
public class Main {
  public static void main(String[] a) {
    File myFile = new File("C:" + File.separator + "jdk1.5.0" + File.separator, "File.java");
    System.out.println(myFile.isAbsolute());
  }
}