The Java SE 9 feature release includes both enhancements in Java SE 9 API or Technology additions and changes in JDK 9. A Java Programmer interested in Oracle Certified Associate, Java SE 9 Programmer (OCAJP 9) and Oracle Certified Professional, Java SE 9 Programmer (OCPJP 9) Java 9 Certifications must know the following features and enhancements.
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