Get type of generic type inside a List in Java

Question

I have the below function:

    public  void putList(String key, List lst){
          if (T instanceof String) {
          // Do something              


        

Answer 1

If you want to run function of the object, you can do:

public  void putList(String key, List lst){
    for(T object : lst){
         if(object instanceof String) {
             doSomething(((String)object).doForString())
         }
         if(object instanceof Integer) {
             doSomething(((Integer)object).doForInteger())
         }
    }
}