Shulou(Shulou.com)06/03 Report--

Import java.util.HashMap

Import java.util.Map

Import java.util.Set

Public class MapDemo {

Public static void main (String args []) {

Map map = new HashMap ()

Map.put ("1", "Zhang San")

Map.put ("2", "Li Si")

Map.put ("3", "Wang Wu")

/ / keySet () traversal / * Set keys = map.keySet (); for (String key:keys) {String value = map.get (key); System.out.println (key+ "" + value);} * / entrySet () traversal Set entrys = map.entrySet (); for (Map.Entry entry:entrys) {String key = entry.getKey (); String value = entry.getValue () System.out.println (key+ "" + value);}}

}

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.