added screenshots for linux and mac

added more info for installing other types of binaries

howto/get-java.md

@@ -83,6 +83,9 @@ Open a terminal window and type
 java -version
 ```
 
+![](images/linux03_check_false.png)
+
+
 #### Extract downloaded binary
 
 After the download finishes you have in the destination folder the `.tar.gz` file with a name like this `openjdk-12.0.2_linux-x64_bin.tar.gz` . 
@@ -96,6 +99,11 @@ sudo mkdir /usr/lib/jvm
 sudo mv jdk-12.0.2 /usr/lib/jvm/
 ```
 
+![](images/linux02_extract.png)
+
+![](images/linux04_move.png)
+
+
 #### Set up the environment variables 
 
 create a shell script in /etc/profile.d
@@ -104,6 +112,9 @@ create a shell script in /etc/profile.d
 sudo nano /etc/profile.d/jdk.sh
 ```
 
+![](images/linux05_env01.png)
+
+
 add the following lines inside the file and save and close
 
 ``` bash
@@ -112,6 +123,8 @@ export PATH=$PATH:$JAVA_HOME/bin
 
 ```
 
+![](images/linux06_env02.png)
+
 apply changes
 
 logout and log back in or run the script you have just created
@@ -128,7 +141,7 @@ echo $JAVA_HOME
 java -version
 ```
 
-
+![](images/linux07_check_true.png)
 
 ### MacOs
 
@@ -140,6 +153,9 @@ Open a terminal window and type
 java -version
 ```
 
+![](images/mac_02_check_false.png)
+
+
 #### Extract downloaded binary
 
 After the download finishes you have in the destination folder the `.tar.gz` file with a name like this `openjdk-12.0.2_osx-x64_bin.tar.gz`.
@@ -150,13 +166,18 @@ Extract the files using the following command
 tar xf openjdk-12.0.2_osx-x64_bin.tar.gz
 ```
 
+![](images/mac_03_extract.png)
+
+
 Move the extracted to the folder  `/Library/Java/JavaVirtualMachines/`
 You will need to execute the move with super user privileges in order to put the files in the system folder
  
 ``` bash
-sudo mv jdk-12.0.2 /Library/Java/JavaVirtualMachines/
+sudo mv jdk-12.0.2.jdk /Library/Java/JavaVirtualMachines/
 ```
 
+![](images/mac_04_move.png)
+
 
 #### Set up the environment variables 
 
@@ -168,22 +189,42 @@ If the file mentioned does not exist we can create it with the following command
 touch ~/.bash_profile
 ```
 
+![](images/mac_05_env01.png)
+
+
 We need to export the `JAVA_HOME` variable so we edit the file using
 
 ``` bash
 edit ~/.bash_profile
 ```
+or 
+
+``` bash
+nano ~/.bash_profile
+```
+
+![](images/mac_06_env02.png)
+
 
 we add the following line
 
 `export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk-12.0.2/Contents/Home"`
 
+![](images/mac_08_env03.png)
+
+
 finally we save the changes and close the file. To apply the changes we need to run the following command
 
 ``` bash
 source ~/.bash_profile
 ```
 
+![](images/mac_07_apply_env.png)
+
+
+check if everything is in order
+
+![](images/mac_09_check_true.png)
 
 ## Using sdkman
 
@@ -265,3 +306,25 @@ See more commands on the sdkman.io site
 4. download the binary corresponding to your operating system
 
 There are more choices for downloads. Typically a .zip or .tar.gz would imply manual setup while the .exe, .deb, .rpm, .dmg will provide some sort of installer support.  
+
+For the .zip or .tar.gz files you need to follow the procedure from above.
+.exe (windows) - run and follow the installer prompts
+.dmg (mac) - run and follow the installer prompts
+.deb (linux) - package format used in Debian and Ubuntu linux distributions
+
+```bash
+sudo dpkg -i ~/Downloads/jdk-12.0.2_linux-x64_bin.deb
+```
+
+alternative way to install .deb packages is with apt
+
+```bash
+sudo apt install ~/Downloads/jdk-12.0.2_linux-x64_bin.deb
+```
+In Ubuntu you can also double click the package and it will open in Software Center where there is an option to install it.
+
+.rpm (linux) - package format commonly used in Redhat and Mandrake linux distributions 
+
+``` bash
+rpm -ivh ~/Downloads/jdk-12.0.2_linux-x64_bin.rpm
+```