Use Java as the default program to open the jar file exported by Eclipse

When exporting the jar File in Eclipse, right-click the workspace, select Export-> Java-> JAR File, and then follow the prompts to generate the jar File, and then open the Registry Editor, select HKEY_CLASSES_ROOT \ Applications \ java.exe \ shell \ open \ command and set the value to "D: \ Program Files \ Java \ bin \ java.exe" "% 1" to "D: \ Program Files \ Java \ bin \ java.exe "-jar" % 1 ", and then select the default Program where java.exe is jar, so that you can double-click the jar file to run it directly.