I want to use zip4j on Android to expand zip file with password, but it causes garbled characters.

import net.lingala.zip4j.core.ZipFile;
import net.lingala.zip4j.exception.ZipException;
import net.lingala.zip4j.model.UnzipParameters;


public class MainActivity extensions FragmentActivity{

    @ Override
    protected void onCreate (Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView (R.layout.main);

        try{
            String zipFilePath=Environment.getExternalStorageDirectory().getPath()+"/PassZip/Japanese.zip";
            String destinationPath=Environment.getExternalStorageDirectory().getPath()+"/PassZip/";
            File dir=new File(Environment.getExternalStorageDirectory().getPath()+"/PassZip/");
            if(!dir.exists()){
                dir.mkdir();
            }
            String password = "password";
            try{
                ZipFile zipFile = new ZipFile(zipFilePath);
                if(zipFile.isEncrypted()){
                    zipFile.setFileNameCharset("csWindows31J")
                    zipFile.setPassword(password);
                }
                zipFile.extractAll(destinationPath);
            } catch(ZipExceptione){
                e.printStackTrace();
            }

        }catch(Exceptione){}
    }
}