Java Local file Operations (i) file creation, deletion, renaming

Package Com.yeqc.testdemo;import Java.io.file;public class Hellofile {public static void main (string[] args) {File File = New File ("Hello.txt"), if (File.exists ()) {System.out.println (File.isfile ()); System.out.println (File.isdirectory ());} ELSE{SYSTEM.OUT.PRINTLN ("File does not exist");}}}

File does not exist

Package Com.yeqc.testdemo;import Java.io.file;import Java.io.ioexception;public class Hellofile {public static void Main (string[] args) {File file = new file ("Hello.txt"), if (File.exists ()) {System.out.println (File.isfile ()); System.out.println (File.isdirectory ());} ELSE{SYSTEM.OUT.PRINTLN ("File does not exist"); try {file.createnewfile (); SYSTEM.OUT.PRINTLN ("File has been successfully created");} catch (IOException e) {System.out.println ("file cannot be created");}}}

Run:

File does not exist file has been successfully created

Run again:

TrueFalse

Rename the file:

Package Com.yeqc.testdemo;import Java.io.file;import Java.io.ioexception;public class Hellofile {public static void Main (string[] args) {File file = new file ("Hello.txt"), if (File.exists ()) {File Nameto = new file ("New Hello.txt"); file.re Nameto (Nameto);} ELSE{SYSTEM.OUT.PRINTLN ("File does not exist"); try {file.createnewfile (); SYSTEM.OUT.PRINTLN ("File has been successfully created");} catch (IOException e) {System.out.println ("file cannot be created");}}}

Deletion of files:

Package Com.yeqc.testdemo;import Java.io.file;import Java.io.ioexception;public class Hellofile {public static void Main (string[] args) {File file = new file ("Hello.txt"), if (File.exists ()) {File.delete ();} ELSE{SYSTEM.OUT.PRINTLN ("File does not exist"); try {file.createnewfile (); SYSTEM.OUT.PRINTLN ("File has been successfully created");} catch (IOException e) {System.out.println ("file cannot be created");}}}

Java Local file Operations (i) file creation, deletion, renaming