You need to open a new file ⇒ choose "Format" ⇒ "Make Plain Text" ⇒ Enter the source code ⇒ Save as " Hello.java ". (If you use Mac OS X's default text editor "TextEdit" (NOT recommended), Use a programming text editor (such as Sublime Text or Atom) to input the following source code and save as " Hello.java " under the directory " ~/myProject ".Hence, this new directory can be referenced as " ~/myProject ". In Mac OS X, the home directory of the current user canīe referenced as " ~ ". Create a directory called " myProject " under your home directory (Launch "Finder" ⇒ "Go" ⇒ "Home" Select "File" ⇒ "New Folder" ⇒ " myProject ").Display the location of Java Runtime which java Display the location of Java Compiler which javac Display the JDK version javac -version To verify your installation, open a "Terminal" and issue these commands.Follow the screen instructions to install JDK/JRE. Double-click the downloaded Disk Image (DMG) file.Under "Java Platform, Standard Edition" ⇒ "Java SE 11.0.Then, proceed to "Step 3: Write a Hello-world Java program". If message "To open javac, you need a Java runtime" appears, select "Install" and follow the instructions to install JDK. Maven is the most widely used build and project dependency management tool for Java-based applications.If message "command not found" appears, JDK is NOT installed.If the JDK version is prior to 1.8, proceed to Step 2 to install the latest JDK otherwise, proceed to "Step 3: Write a Hello-world Java If a JDK version number is returned (e.g., JDK x.x.x ), then JDK has already been installed.The output should display the Java version installed on your MacOS. Once in the command line, run the command: java -version. To check if JDK has been installed, open a "Terminal" (Search "Terminal" or Finder ⇒ Go ⇒ Utilities ⇒ Terminal) and issue this command: javas - version How do I check Java version on Mac terminal Type terminal in the search bar and open it by clicking on the icon in the search results. Step 1: Check if JDK has been Pre-Installed
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