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java on MSYS2
author Franklin Schmidt <fschmidt@gmail.com>
date Sat, 28 Jun 2025 13:10:57 -0600
parents b4ac64cb4bd2
children
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101:b4ac64cb4bd2 102:21dce019b8bb
214 Java(TM) SE Runtime Environment (build 1.8.0_241-b07) 214 Java(TM) SE Runtime Environment (build 1.8.0_241-b07)
215 Java HotSpot(TM) 64-Bit Server VM (build 25.241-b07, mixed mode) 215 Java HotSpot(TM) 64-Bit Server VM (build 25.241-b07, mixed mode)
216 ~ $ 216 ~ $
217 </code> 217 </code>
218 218
219 <p>On <a href="https://www.msys2.org/">MSYS2</a>, this won't work initially because <code>java</code> isn't in your path. So from MSYS2:
220
221 <code block>
222 ~ $ cd '/c/Program Files/Java'
223 /c/Program Files/Java $ ls
224 jdk1.8.0_202 jre1.8.0_202
225 /c/Program Files/Java $ cd jdk1.8.0_202/
226 /c/Program Files/Java/jdk1.8.0_202 $ ls
227 bin javafx-src.zip LICENSE src.zip
228 COPYRIGHT jre README.html THIRDPARTYLICENSEREADME.txt
229 include lib release THIRDPARTYLICENSEREADME-JAVAFX.txt
230 /c/Program Files/Java/jdk1.8.0_202 $
231 </code>
232
233 <p>In <code>~/.bash_profile</code>:
234
235 <code block>
236 export JAVA_HOME="/c/Program Files/Java/jdk1.8.0_202"
237 PATH="$JAVA_HOME/bin:$PATH"
238 export PATH
239 </code>
240
241 <p>Now open a new MSYS2 shell and Java should work.</p>
242
219 <h3>Learn BeanShell</h3> 243 <h3>Learn BeanShell</h3>
220 244
221 <p>As with Bash, I will write my own <a href="beanshell.html">BeanShell tutorial</a>. Read it.</p> 245 <p>As with Bash, I wrote my own <a href="beanshell.html">BeanShell tutorial</a>. Read it.</p>
222 246
223 <h3>Learn Java</h3> 247 <h3>Learn Java</h3>
224 248
225 <p>Now it's time to read your Java book for beginners and try writing some Java programs. Refer to <a href="https://www.amazon.com/Java-Programming-Language-4th/dp/0321349806/">The Java Programming Language</a> for details and ask ChatGPT for explanations. You do not need to become a Java expert, so don't spend too much time on this. You just need to get the basic idea of Java.</p> 249 <p>Now it's time to read your Java book for beginners and try writing some Java programs. Refer to <a href="https://www.amazon.com/Java-Programming-Language-4th/dp/0321349806/">The Java Programming Language</a> for details and ask ChatGPT for explanations. You do not need to become a Java expert, so don't spend too much time on this. You just need to get the basic idea of Java.</p>
226 250