java - 创建文件

　　

package practice;

import java.io.File;
import java.io.IOException;

public class CreateFile {

    public static void main(String[] args) {

        File f = new File("src/practice","hello.txt");

        if(!f.exists()) {
            try {
                f.createNewFile();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            System.out.println("创建成功");
        }else {
            System.out.println("文件已存在");
        }

    }

}