Example10_1.java import java.io.*; public class Example10_1 { public static void main(String args[]) { File f = new File("C:\\ch10","Example10_1.java"); System.out.println(f.getName()+"是可读的吗:"+f.canRead()); System.out.println
java在创建文件的过程中如果改文件的路径不存在: 会出现下面这种情况 java.io.IOException: 系统找不到指定的路径. at java.io.WinNTFileSystem.createFileExclusively(Native Method) at java.io.File.createNewFile(File.java:883) at test.demo.createFile(demo.java:44) at test.demo.main(demo.java:27) 所以
package aaa;import java.util.Date;import java.util.regex.Matcher;import java.util.regex.Pattern;import java.io.*; class Animal{} class Mammal extends Animal{} class Reptile extends Animal{} class Dog extends Mammal{} public class ccc { void createFil