Defu Cui@yubocdfFollow BadgesProblem SolvingCPPJavaPythonDays of CodeDays ofStatistics CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Java (Basic)VerifiedskillCertificate: Java (Intermediate)VerifiedskillWork Experienceyubocdf has not updated employment details yet.EducationOld Dominion University, NorfolkLinksyubocdf has not updated links details yet. Skillsyubocdf has not updated skills details yet.