Decompress files from .zip using java.util.zip

Example to decompress multi files from .zip using java.util.zip, with JavaFX UI.

Decompress files from .zip using java.util.zip

package javafx_zip;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.stage.FileChooser;
import javafx.stage.Stage;

/**
 *
 * @web http://java-buddy.blogspot.com/
 */
public class JavaFX_Zip extends Application {

    File fileSrc;
    private static final int bufferSize = 8192;

    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("Hello World!");

        final Label labelFile = new Label();

        Button btn = new Button();
        btn.setText("Open FileChooser'");
        btn.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {

                FileChooser fileChooser = new FileChooser();

                //Set extension filter
                FileChooser.ExtensionFilter extFilter =
                        new FileChooser.ExtensionFilter("Zip files (*.zip)", "*.zip");
                fileChooser.getExtensionFilters().add(extFilter);
                File fileSrc = fileChooser.showOpenDialog(null);

                String source = fileSrc.getPath();
                String targetUnZipPath = fileSrc.getParent();

                try {
                    //Compress file
                    FileInputStream fileInputStream =
                            new FileInputStream(source);
                    BufferedInputStream bufferedInputStream =
                            new BufferedInputStream(fileInputStream);
                    ZipInputStream zipInputStream =
                            new ZipInputStream(bufferedInputStream);

                    ZipEntry zipEntry;
                    
                    String unzippedMsg = "";

                    while ((zipEntry = zipInputStream.getNextEntry()) != null) {
                        try {
                            byte[] buffer = new byte[bufferSize];
                            String unzippedFile = targetUnZipPath + "/" + zipEntry.getName();
                            FileOutputStream fileOutputStream = 
                                    new FileOutputStream(unzippedFile);
                            int size;
                            while ((size = zipInputStream.read(buffer)) != -1) {
                                fileOutputStream.write(buffer, 0, size);
                            }
                            fileOutputStream.flush();
                            fileOutputStream.close();
                            unzippedMsg += unzippedFile + "\n";
                        } catch (Exception ex) {
                        }
                    }
                    zipInputStream.close();
                    labelFile.setText("Unzipped files: \n" + unzippedMsg);
                } catch (IOException ex) {
                    Logger.getLogger(JavaFX_Zip.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        });

        VBox vBox = new VBox();
        vBox.getChildren().addAll(btn, labelFile);

        StackPane root = new StackPane();
        root.getChildren().add(vBox);
        primaryStage.setScene(new Scene(root, 300, 250));
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}