File file = new File("D:\\demosun"); if (!file.exists()){ file.mkdirs() ; }
File f = new File("D:/demosun"); f.mkdirs(); FileWriter fw = new FileWriter("D:/demosun/demosu.txt"); fw.close();
File f = new File("D:/demosun"); f.mkdirs(); FileWriter fw = new FileWriter("D:/demosun/demosu.txt"); fw.close();
File file = new File("D:\\demosun"); if (!file.exists()){ file.mkdirs() ; } file = new File("D:\\demosun\\demosu.txt") ; if (!file.exists()){ bool b = file.createNewFile(); if (b){ System.out.println("创建成功。") ; } }
public static void main(String[] args) throws IOException { File file = new File("d:/demosun/demosu.txt"); if(!file.getParentFile().exists()) file.getParentFile().mkdirs(); if(!file.exists()) file.createNewFile(); }
package test;import java.io.File; import java.io.IOException;public class Test { public static void main(String []args){ File directory = new File("D:\\demosun"); if(!directory.exists()){ directory.mkdirs(); } File file = new File("D:\\demosun\\demosu.txt"); try{ if(!file.exists()){ file.createNewFile(); } } catch(IOException e){ e.printStackTrace(); } if(file.exists()){ System.out.println("文件夹及文件创建成功"); } } }
File file = new File("D:\\demosun"); if (!file.exists()){ file.mkdirs() ; } file = new File("D:\\demosun\\demosu.txt") ; if (!file.exists()){ bool b = file.createNewFile(); if (b){ System.out.println("创建成功。") ; } }
if (!file.exists()){
file.mkdirs() ;
}
f.mkdirs();
FileWriter fw = new FileWriter("D:/demosun/demosu.txt");
fw.close();
f.mkdirs();
FileWriter fw = new FileWriter("D:/demosun/demosu.txt");
fw.close();
if (!file.exists()){
file.mkdirs() ;
}
file = new File("D:\\demosun\\demosu.txt") ;
if (!file.exists()){
bool b = file.createNewFile();
if (b){
System.out.println("创建成功。") ;
}
}
public static void main(String[] args) throws IOException {
File file = new File("d:/demosun/demosu.txt");
if(!file.getParentFile().exists())
file.getParentFile().mkdirs();
if(!file.exists())
file.createNewFile();
}
import java.io.IOException;public class Test {
public static void main(String []args){
File directory = new File("D:\\demosun");
if(!directory.exists()){
directory.mkdirs();
}
File file = new File("D:\\demosun\\demosu.txt");
try{
if(!file.exists()){
file.createNewFile();
}
}
catch(IOException e){
e.printStackTrace();
}
if(file.exists()){
System.out.println("文件夹及文件创建成功");
}
}
}
if (!file.exists()){
file.mkdirs() ;
}
file = new File("D:\\demosun\\demosu.txt") ;
if (!file.exists()){
bool b = file.createNewFile();
if (b){
System.out.println("创建成功。") ;
}
}