Here is the quick dev setup every developer needs on their Arch Linux - Manjaro
$ sudo pacman -Syu
$ sudo pacman -S git
$ git --version
$ sudo pacman -S jre11-openjdk-headless jre11-openjdk jdk11-openjdk openjdk11-doc openjdk11-src
$ java --version
$ pacman -S nodejs npm
$ node --version
git clone https://aur.archlinux.org/yay-git.git
cd yay-git
sudo makepkg -si
yay -S visual-studio-code-bin
yay -S google-chrome