
Basic introduction
Java Development Kit (JDK) is Sun Microsystems' product for java developers. Since the introduction of Java, JDK has become the most widely used Java SDK. JDK is the core of the entire Java, including Java runtime environment, Java tools and Java basic class libraries. JDK is the first step to learn Java well. Jrocket, which specifically runs on the x86 platform, is much more efficient on the server side than Sun JDK. Starting from SUN's JDK5.0, it has provided very practical functions such as generics. Its version has been continuously updated, and its operating efficiency has been greatly improved.
The original critical patch update for Java SE was scheduled to be released on February 19 - February 2013, but Oracle decided to expedite the release of this critical patch update because of an actively developed "wild" Java vulnerability affecting the desktop browser runtime environment (JRE) that was addressed with this critical patch update.















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