Java ZipEntry setCreationTime() function with examples
The setCreationTime() function is a part of java.util.zip package. The function is used to set the Creation Time of Zip Entry . The Function takes FileTime object as parameter.
The FileTime Object, which represents the creation time of the ZipEntry .
Function Signature :
public void setCreationTime(FileTime v)
Syntax :
zip_entry.setCreationTime(v);
Parameters :The function takes FileTime object as parameter, the time of creation of the file.
Return value :The function does not take any parameter
Exceptions :The function throws NullPointerException if the time is null
Below programs illustrates the use of setCreationTime() function
Example 1: We will create a file named zip_file and get the zip file entry using getEntry() function and then set the CreationTime of the specified ZipEntry.”file.zip” is a zip file present in f: directory. we will take a “.zip” file as ZipEntry
// Java program to demonstrate the // use of setCreationTime() function import java.util.zip.*; import java.util.Enumeration; import java.util.*; import java.io.*; import java.nio.file.attribute.*; public class solution { public static void main(String args[]) { try { // Create a Zip File ZipFile zip_file = new ZipFile( "f:\\file1.zip" ); // get the Zip Entry using // the getEntry() function ZipEntry entry = zip_file.getEntry( "file.zip" ); // set the CreationTime // using the setCreationTime() // function entry.setCreationTime(FileTime.fromMillis( 100000 )); // Get the CreationTime // using the getCreationTime() // function FileTime input = entry.getCreationTime(); // Display the CreationTime System.out.println( "CreationTime : " + input.toString()); } catch (Exception e) { System.out.println(e.getMessage()); } } } |
CreationTime : 1970-01-01T00:01:40Z
Example 2: We will create a file named zip_file and get the zip file entry using getEntry() function and then set the CreationTime of the specified ZipEntry.”file.zip” is a zip file present in f: directory. We will set the value of creation time to null. we will take a “.cpp” file as ZipEntry
// Java program to demonstrate the // use of getCreationTime() function import java.util.zip.*; import java.util.Enumeration; import java.util.*; import java.io.*; import java.nio.file.attribute.*; public class solution { public static void main(String args[]) { try { // Create a Zip File ZipFile zip_file = new ZipFile( "f:\\file1.zip" ); // get the Zip Entry using // the getEntry() function ZipEntry entry = zip_file.getEntry( "file.zip" ); // set the CreationTime // using the setCreationTime() // function entry.setCreationTime( null ); // Get the CreationTime // using the getCreationTime() // function FileTime input = entry.getCreationTime(); // Display the CreationTime System.out.println( "CreationTime : " + input.toString()); } catch (Exception e) { System.out.println(e.getMessage()); } } } |
CreationTime :
The Program terminated due to error as null value is set
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/zip/ZipEntry.html#setCreationTime-java.nio.file.attribute.FileTime-
Contact Us