Creating and storing arrays in a map : Map « Collections « Java Tutorial

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Java Tutorial » Collections » Map 
9. 25. 1. Creating and storing arrays in a map
import java.util.Iterator;
import java.util.Map;
import java.util.TreeMap;

public class Main {
  public static void main(String[] args) {
    Map<String, int[]> map = new TreeMap<String, int[]>();

    int[] array = new int[3];
    array[00;
    array[11;
    array[22;
    map.put("array", array);

    Iterator<String> iter = map.keySet().iterator();

    while (iter.hasNext()) {
      String arrayName = iter.next();
      array = map.get(arrayName);
      System.out.print(arrayName + ":");
      for (int i = 0; i < array.length; i++) {
        System.out.print(array[i]);
      }
    }
  }
}
//array:012
9. 25. Map
9. 25. 1. Creating and storing arrays in a map
9. 25. 2. Sort based on the values
9. 25. 3. Get a key from value with an HashMap
9. 25. 4. Retrieve environment variables (JDK1.5)
9. 25. 5. Creating a Type-Specific Map: creates a map whose keys are Integer objects and values are String objects.
9. 25. 6. A map declared to hold objects of a type T can also hold objects that extend from T
9. 25. 7. A value retrieved from a type-specific collection does not need to be casted
9. 25. 8. Map techniques.
9. 25. 9. Create an array containing the keys in a map
9. 25. 10. Create an array containing the values in a map
9. 25. 11. Creating a Hash Table
9. 25. 12. Creating a Map That Retains Order-of-Insertion
9. 25. 13. Automatically Removing an Unreferenced Element from a Hash Table
9. 25. 14. Creating a Type-Specific Map [5.0]
9. 25. 15. Create type specific collections
9. 25. 16. Convert Properties into Map
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