best way to provide password in java ft. barteksc's pdfViewer

问题

I have set password in my pdf file. I want a best way to store its password in java. I did as the following but I think, it could be easily accessed by private hackers because it is stored as string.

pdfView.fromAsset("eng1.pdf").scrollHandle(new DefaultScrollHandle(this)).password("eng@789").load();

Is there any better solution than to store as string value? I went through many websites but didn't get the necessary solution.

来源：https://stackoverflow.com/questions/61619104/best-way-to-provide-password-in-java-ft-bartekscs-pdfviewer