Java

Installing LSP

:LspInstall jdtls

Installing Formatter

:MasonInstall clang-format

If mason is not supported on your platform

Setup LSP

go to: ~/.config/nvim/lua/userconfig/lsp.lua

and add these lines

require('lspconfig')['jdtls'].setup {
  capabilities = capabilities,
  on_attach = on_attach
}

Formatter

If lsp does not provide a formatter, you can use the following command: :Neoformat click here (opens in a new tab) for more information