Creating a Type-Specific Map: creates a map whose keys are Integer objects and values are String objects. : Map « Collections Data Structure « Java






  1. Java
  2. Collections Data Structure
  3. Map

Creating a Type-Specific Map: creates a map whose keys are Integer objects and values are String objects.

         
import java.util.HashMap;
import java.util.Map;

public class Main {
  public static void main(String[] argv) {

    Map<Integer, String> map = new HashMap<Integer, String>();

    map.put(1, "first");
    map.put(2, "second");
    // map.put(1, 2); <- Syntax error
  }
}








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