Java中TreeMap使用演示代码，javatreemap,import java.

Java中TreeMap使用演示代码，javatreemap,import java.

import java.util.TreeMap;public class dimensionsExample {   public static void main(String[] args) {      TreeMap<String,String> dimensions = new TreeMap<String,String>();      dimensions.put("NC", "2333");      dimensions.put("NY", "2334");      dimensions.put("SC", "2335");      dimensions.put("CA", "2336");      System.out.println("CA: " + dimensions.get("CA"));      dimensions.put("AZ", "2337");      System.out.println("Size of dimensions: " + dimensions.size());      dimensions.remove("SC");      System.out.println("Size of dimensions: " + dimensions.size());   }}