package Test;import java.util.HashMap;
import java.util.Iterator;
public class HashmapIterator {
public static void main(String[] args) {
HashMap map = new HashMap();
map.put("1", "one");
map.put("2", "two"); Iterator it = map.keySet().iterator();
while(it.hasNext()){
Object key = it.next();
System.out.println("key = " + key + ", value = " + map.get(key));
}
}}
import java.util.Iterator;
public class HashmapIterator {
public static void main(String[] args) {
HashMap map = new HashMap();
map.put("1", "one");
map.put("2", "two"); Iterator it = map.keySet().iterator();
while(it.hasNext()){
Object key = it.next();
System.out.println("key = " + key + ", value = " + map.get(key));
}
}}
addsql.put("t_title","111");
addsql.put("t_content","222");Iterator itr = addsql.keySet().iterator();
StringBuffer keyBuffer = new StringBuffer();
StringBuffer valueBuffer = new StringBuffer();
while (itr.hasNext()) {
String key = (String) itr.next();
keyBuffer.append(",");
keyBuffer.append(key);
valueBuffer.append(",");
valueBuffer.append((String) addsql.get(key));
}if (keyBuffer.length() > 0) {
keyBuffer.delete(0, 1);
}
if (valueBuffer.length() > 0) {
valueBuffer.delete(0, 1);
}System.out.println(keyBuffer.toString());
System.out.println(valueBuffer.toString());