Java ZipEntry setCompressedSize() function with examples
Last Updated :
06 Mar, 2019
The setCompressedSize() function is a part of java.util.zip package. The function sets the compressed size of the Zip Entry to specified long value.
Function Signature :
public void setCompressedSize(long val)
Syntax :
zip_entry.setCompressedSize(val);
Parameters :The function takes a long value as parameter.
Return value :The function does not return any value.
Exceptions :The function does not throw any exception.
Below programs illustrates the use of setCompressedSize() function
Example 1: We will create a file named zip_file and get the zip file entry using getEntry() function and then set the Compressed Size of the specified ZipEntry.”file.zip” is a zip file present in f: directory. we will take a “.zip” file as ZipEntry
import java.util.zip.*;
import java.util.Enumeration;
import java.util.*;
import java.io.*;
public class solution {
public static void main(String args[])
{
try {
ZipFile zip_file = new ZipFile( "f:\\file1.zip" );
ZipEntry entry = zip_file.getEntry( "file.zip" );
entry.setCompressedSize( 123 );
long input = entry.getCompressedSize();
System.out.println( "CompressedSize : " + input);
}
catch (Exception e) {
System.out.println(e.getMessage());
}
}
}
|
Output:
CompressedSize : 123
Example 2: We will create a file named zip_file and get the zip file entry using getEntry() function and then set the CompressedSize of the specified ZipEntry.”file.zip” is a zip file present in f: directory. we will take a “.cpp” file as ZipEntry
import java.util.zip.*;
import java.util.Enumeration;
import java.util.*;
import java.io.*;
public class solution {
public static void main(String args[])
{
try {
ZipFile zip_file = new ZipFile( "f:\\file1.zip" );
ZipEntry entry = zip_file.getEntry( "file1.cpp" );
entry.setCompressedSize( 123 );
long input = entry.getCompressedSize();
System.out.println( "CompressedSize : " + input);
}
catch (Exception e) {
System.out.println(e.getMessage());
}
}
}
|
Output:
CompressedSize : 123
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/zip/ZipEntry.html#setCompressedSize-long-
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