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Java SE 11 / OpenJDK 11 (→ The most important new features in Java 11).Java SE 10 / OpenJDK 10 (→ The most important new features in Java 10)Īttention – you may use the following Oracle distributions only for private purposes and development:.Starting with the following versions, you don't need to change the default installation directories: Java SE 1.4 – Installed to C:\j2sdk1.4.2_19\ by default – I recommend changing this to C:\Program Files (x86)\Java\jdk1.4.2_19\.Java SE 1.3 – Installed to C:\jdk1.3.1_28\ by default – I recommend changing this to C:\Program Files (x86)\Java\jdk1.3.1_28\.Java SE 1.2 – Installed to C:\jdk1.2.2\ and C:\Program Files (x86)\JavaSoft\JRE\1.2\ by default – I recommend changing this to C:\Program Files (x86)\Java\jdk1.2.2\ and C:\Program Files (x86)\Java\jre1.2.2\ for the sake of clarity.Java SE 1.1 – You can no longer install this version on 64-bit Windows.You can download and run the installer for each version, which automatically installs the versions in separate directories. Installing multiple Java versions in parallel is incredibly easy in Windows. Let's go… Step 1: Installing Multiple Java Versions To enable these Java version change commands on your system as well, follow this step-by-step guide.