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File Handling (File class-2)

Example6:- TestFile
import java.io.File;
import java.io.*;
class TestFile
{
public static void main(String[]args)throws IOException
{
File f=new File("c://javatech//ABC","Test.txt");
f.createNewFile();
if(f.isFile())
System.out.println("Yes it is file exist");
if(f.isDirectory())
System.out.println("Yes it  Directory ");
}
}
Output:- C:\JAVATECH>javac TestFile.java
C:\JAVATECH>java TestFile
Yes it is file exist

Example7:- TestFile
import java.io.File;
import java.io.*;
class TestFile
{
public static void main(String[]args)throws IOException
{
File f=new File("TestFile.java");
System.out.println(f.length());
}
}
Output:- C:\JAVATECH>javac TestFile.java
C:\JAVATECH>java TestFile
192

Example8:- TestFile(list of files from a directory)
import java.io.File;
import java.io.*;
class TestFile
{
public static void main(String[]args)throws IOException
{
File f=new File("c://javatech");
String s[]=f.list();
for(int i=0;i<s.length;i++)
{
System.out.println(s[i]);
}
}
}
Output:- C:\JAVATECH>javac TestFile.java
C:\JAVATECH>java TestFile
A.class
A.java
AA.class
ABC
abc.txt
Account.class
B.class
Bank.class
BB.class
BB.java
C.class
Customer.class
Customer.java

Example9:- TestFile
import java.io.File;
import java.io.*;
class TestFile
{
public static void main(String[]args)throws IOException
{
File f=new File("abc.txt");
f.deleteOnExit();
}
}
Output:-file will be deleted from folder

Example10:- TestFile
import java.io.File;
import java.io.*;
class TestFile
{
public static void main(String[]args)throws IOException
{
File f=new File("TestFile.java");
System.out.println(f.lastModified());
System.out.println(f.isHidden());
System.out.println(f.canRead());
System.out.println(f.canWrite());
System.out.println(f.canExecute());
System.out.println(f.getTotalSpace());
System.out.println(f.getFreeSpace());
System.out.println(f.getUsableSpace());
}
}
Output:- C:\JAVATECH>javac TestFile.java
C:\JAVATECH>java TestFile
1489752996128
false
true
true
true
160851554304
93130452992

93130452992

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