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Java can't run without signature.
Attach a digital signature to a Java application or Javaapplet. Digital signatures need to be generated by Java code signing tools and verified by digital certificates. Before signing, you need to ensure the integrity and security of the code to avoid security holes in the signed code. Click to learn the excellent course of famous teachers from big factories.

This problem can be solved by modifying the Java security policy file. You can add rules to the Java security policy file that allow unsigned Java applications to run. This method is relatively simple, but it also needs to pay attention to safety. Java is a universal object-oriented programming language, which has the advantages of portability, efficiency and robustness, and has become one of the preferred languages for Web application development. However, in the increasingly competitive market, Java is constantly developing and updating to meet the changing needs.

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