How to Zip and Unzip Files and Folders in Java

import java.util.zip.*;
import java.io.*;


public class ZipTool {
    public static void zipMyFile( String inputFile, String  outputFile ) throws IOException, FileNotFoundException {
        ZipOutputStream zo = new ZipOutputStream(new FileOutputStream(outputFile));
        FileInputStream fi = new FileInputStream(new File(inputFile));
        ZipEntry ze = new ZipEntry(inputFile);

        zo.putNextEntry(ze);
        byte[] buf = new byte[1024];
        int length;
        while((length = fi.read(buf)) >= 0) {
            zo.write(buf, 0, length);
        }
        zo.close();
        fi.close();
    }

    public static void zipSomeFiles(String[] inputFileList, String outputFile) throws IOException, FileNotFoundException {
        ZipOutputStream zo = new ZipOutputStream(new FileOutputStream(outputFile));
        for ( String f1 : inputFileList ) {  
            FileInputStream fi = new FileInputStream(new File(f1));
            ZipEntry ze = new ZipEntry(f1);

            zo.putNextEntry(ze);
            byte[] buf = new byte[1024];
            int length;
            while((length = fi.read(buf)) >= 0) {
                zo.write(buf, 0, length);
            }
            fi.close();
        }
        zo.close();
    }

    public static void main(String[] args) throws IOException, FileNotFoundException {
            zipMyFile("test.txt", "test.txt.zip");
            String[] srcFiles = new String[]{new String("test1.txt"), new String("test2.txt")};
            zipSomeFiles(srcFiles, "test_B.zip");
    }
}