File的创建

package cn.lijun.demo3;import java.io.File;
import java.io.IOException;// 创建文件功能   如果文件已经存在  不再创建
public class FileDemo2 {
    public static void main(String[] args) throws IOException {
        fun3();
    }
    //删除
    public static void fun3(){
        File file1 =new File("c:\\baixiaolong\\b.txt");
        boolean b = file1.delete();
        System.out.println(b);    }
    //创建目录
        public static void fun2() throws IOException{
            File file =new File("c:\\baixiaolong");
            boolean m = file.mkdirs();
            System.out.println(m);
            File file1 =new File("c:\\baixiaolong\\b.txt");
            boolean s = file1.createNewFile();
            System.out.println(s);
        }
    public static void fun() throws IOException{
        File file =new File("c:\\a.txt");
        boolean b = file.createNewFile();
        System.out.println(b);
    }}