In this Tutorial, we want to describe you a code that helps you in
understanding Get File Size. For this we have a class name" Get File Size" Inside
the main method we have -
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Input Stream Reader
|
This is used to decode a byte code
and convert the byte code to a character stream.
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| Buffered Reader
|
This
is used to read a character stream from a file.
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We declare a string variable path assigned to memory. The System.out.println
is used to print the path. In the Try block readline ( ) method provides you to
read the file and store in a path variable. Incase there is an exception
occurred in a try block, the catch block followed by the try block to handle the
exception. Otherwise we declare file variable name dir and assigned to a memory
by passing path as argument. The dir variable call a list method return you a
list of files and store in a string array file list. We display the list
of array file using for loop. Now in order to evaluate the size of file we
use.isfile( ),returns you the size of file present in bytes by placing in the
conditional operator if clause.
GetFileSize.java
import java.io.*;
public class GetFileSize {
public static void main(String args[]) throws Exception {
InputStreamReader streamReader = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(streamReader);
String path = new String();
System.out.println("Path : ");
try {
path = br.readLine();
} catch (Exception e) {
System.out.println(e);
}
File dir = new File(path);
String[] fileList = dir.list();
File file;
for (int i = 0; i < fileList.length; i++) {
file = new File(fileList[i]);
if (file.isFile()) {
System.out.println(file.getName() +
" : " + file.length() + " Bytes");
}
}
}
}
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Output
Path :
.
build.xml : 3367 Bytes
manifest.mf : 85 Bytes
text.txt : 93 Bytes
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