Programming Tips - Java: Initialize immutable Map in Java8

Date: 2020aug4 Language: Java Q. Java: Initialize immutable Map in Java8 A. Use Collections.unmodifiableMap() like this
final Map<String, String> mStates = Collections.unmodifiableMap(new HashMap<String,String>() {{ put("AL", "Alabama"); put("AK", "Alaska"); put("AZ", "Arizona"); }});