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ZipFile getEntry() function in Java with examples

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The getEntry() function is a part of java.util.zip package. The function returns the ZipEntry of file present in the zip file specified by the string parameter. Function Signature:
public ZipEntry getEntry(String name)
Syntax:
zip_file.getEntry();
Parameters: The function takes a string parameter, the name of the file. Return value: The function returns the ZipEntry of the zip file specified by the string parameter. Exceptions: The function throws IllegalStateException if the zip file has been closed. Below programs illustrates the use of getEntry() function Example 1: Create a file named zip_file and get the zip file entry using getEntry() function. “file.zip” is a zip file present in f: directory.
// Java program to demonstrate the
// use of getEntry() function
  
import java.util.zip.*;
import java.util.Enumeration;
  
public class solution {
    public static void main(String args[])
    {
  
        try {
  
            // Create a Zip File
            ZipFile zip_file
                = new ZipFile("f:\\file.zip");
  
            // get the Zip Entry using
            // the getEntry() function
            ZipEntry entry
                = zip_file.getEntry("file1.cpp");
  
            // display the Zip Entry
            System.out.println("Name: "
                               + entry.getName());
        }
        catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }
}

                    
Output:
Name: file1.cpp
Example 2: Create a file named zip_file and get the zip file entry using getEntry() function. “file.zip” is a zip file present in f: directory whereas “file4.cpp” is not present in the zip file.
// Java program to demonstrate the
// use of getEntry() function
  
import java.util.zip.*;
import java.util.Enumeration;
  
public class solution {
    public static void main(String args[])
    {
  
        try {
  
            // Create a Zip File
            ZipFile zip_file
                = new ZipFile("f:\\file.zip");
  
            // get the Zip Entry using
            // the getEntry() function
            ZipEntry entry
                = zip_file.getEntry("file4.cpp");
  
            // display the Zip Entry
            System.out.println("Name: "
                               + entry.getName());
        }
        catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }
}

                    
Output:
null
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/zip/ZipFile.html#getEntry(java.lang.String)

Last Updated : 06 Mar, 2019
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