JSON to HM and vice versa

JSON.java

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

public class JSON {
	public static HashMap<String, String> QHM(String Q) {
		HashMap<String, String> HM = new HashMap<String, String>();
		Q = Q.replaceFirst("\\{", "").substring(0, Q.length()-2); // {“user”:”x”,”pass”:”y”} -> “user”:”x”,”pass”:”y”
		String[] pairs = Q.split(","); // ["user":"x" , "pass":"y"]
		for(int i = 0;i < pairs.length;i++) {
			String[] pair = pairs[i].split(":"); // "user" , "x"
			HM.put(pair[0].replaceFirst("\"", "").substring(0, pair[0].length()-2), 
					pair[1].replaceFirst("\"", "").substring(0, pair[1].length()-2));
		}
		return HM;
	}
	public static String HMQ(HashMap<String, String> HM) {
		String Q = "{";
		
		int iter = 0;
		for (Map.Entry<String, String> entry : HM.entrySet()) {
			String E = "\""+entry.getKey()+"\":"+"\""+entry.getValue()+"\"";
			iter++;
			if(! (iter+1 > HM.size())) {
				E += ",";
			}
			Q += E;
		}
		Q += "}";
		return Q;
	}
	
}