Java Tutorial Java HashMap

Convert

  1. Create Hashtable from HashMap in Java
  2. Get Synchronized Map from HashMap in Java

Basic

  1. Get Set view of Keys from HashMap in Java
  2. Get Size of HashMap in Java
  3. Check if a particular key exists in HashMap in Java
  4. Check if a particular value exists in HashMap in Java
  5. Generic hashmap with String as key and Integer as value in Java

Iterate

  1. Iterate through the values of HashMap in Java

Sort

  1. Sort an HashMap based on the keys in Java

Remove

  1. Remove all values from HashMap in Java
  2. Remove value from HashMap in Java

Custom

  1. Create a HashMap for counting values in Java
  2. Create a HashMap to support duplicate keys in Java
  3. Extend java.util.HashMap to accpet a default value in Java




















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