Java.util.zip: Inflater Class

The java.util.zip.Inflater class in Java is used to decompress data that has been compressed in a ZIP format. It can be used to read and decompress data from files, streams, or other sources.

How to Use Inflater Class

Here is an example of how to use the Inflater class:

import java.util.zip.Inflater;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

public class InflaterExample {
    public static void main(String[] args) throws IOException {
        byte[] compressedData = {120, -100, 63, 64, 20, 0, 0, 0, -1, -1};
        Inflater inflater = new Inflater();
        inflater.setInput(compressedData, 0, compressedData.length);
        byte[] decompressedData = new byte[100];
        int decompressedLength = inflater.inflate(decompressedData);
        inflater.end();
        System.out.println(new String(decompressedData, 0, decompressedLength));
    }
}

In this example, we first create a byte array compressedData which holds some compressed data. We then create a new instance of the Inflater class and set the input to the compressed data using the setInput method.

Next, we create a new byte array decompressedData to hold the decompressed data. We then call the inflate method to decompress the data and store it in decompressedData. The return value of inflate is the length of the decompressed data.

Finally, we call the end method on the Inflater instance to free any resources it may be using.

Conclusion

The java.util.zip.Inflater class in Java is a useful tool for decompressing ZIP format data. It can be used to read and decompress data from files, streams, or other sources. With the example provided above, any programmer can easily understand how to use it in their applications.