ReplaceAll with java8 lambda functions

Question

Given the following variables

templateText = \"Hi ${name}\";
variables.put(\"name\", \"Joe\");

I would like to replace the placeholder ${na

Answer 1

Your code should be changed like below,

String templateText = "Hi ${name}";
Map variables = new HashMap<>();
variables.put("name", "Joe");
templateText = variables.keySet().stream().reduce(templateText, (originalText, key) -> originalText.replaceAll("\\$\\{" + key + "\\}", variables.get(key)));