Java ZipEntry getLastAccessTime() function with examples


The getLastAccessTime() function is a part of java.util.zip package. The function returns the Last Access Time of a specific ZipEntry .
The function returns FileTime Object, which represents the Last Access time of the ZipEntry (when the file was last accessed) or null if last access time is not specified.
Function Signature :

public FileTime getLastAccessTime()

Syntax :

zip_entry.getLastAccessTime();

Parameters :No parameter is required for this function.
Return value :The function returns FileTime Object, which represents the Last Access time of the ZipEntry .
Exceptions :The function does not throw any exception.



Below programs illustrates the use of getLastAccessTime() function

Example 1: We will create a file named zip_file and get the zip file entry using getEntry() function and then get the LastAccessTime of the specified ZipEntry.”file.zip” is a zip file present in f: directory. we will take a “.zip” file as ZipEntry

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// Java program to demonstrate the
// use of getLastAccessTime() 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");
  
            // Get the LastAccessTime
            // using the getLastAccessTime()
            // function
            FileTime input = entry.getLastAccessTime();
  
            // Display the LastAccessTime
            System.out.println("LastAccessTime : "
                               + input.toString());
        }
        catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }
}

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Output:

LastAccessTime : 2019-02-24T18:42:15.847545Z

Example 2: We will create a file named zip_file and get the zip file entry using getEntry() function and then get the LastAccessTime of the specified ZipEntry.”file.zip” is a zip file present in f: directory. we will take a “.cpp” file as ZipEntry

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// Java program to demonstrate the
// use of getLastAccessTime() 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("file1.cpp");
  
            // Get the LastAccessTime
            // using the getLastAccessTime()
            // function
            FileTime input = entry.getLastAccessTime();
  
            // Display the LastAccessTime
            System.out.println("LastAccessTime : "
                               + input.toString());
        }
        catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }
}

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Output:

LastAccessTime : 2018-12-07T13:11:25.38081Z

Reference: https://docs.oracle.com/javase/8/docs/api/java/util/zip/ZipEntry.html#getLastAccessTime–



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Second year Department of Information Technology Jadavpur University

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