By: Prashant Pandey

Prashant Pandey — Tue, 02 Nov 2010 13:20:23 +0000

Hi Mahesh,

try this

import java.util.HashMap;
import java.util.StringTokenizer;

class Test {
public Test() {
HashMap hMap = new HashMap();
hMap.put(“Name”, “Mahesh”);
hMap.put(“Age”, 26);
hMap.put(“Designation”, “Software Engineer”);
hMap.put(“Company”, “Logica”);
System.out.println(hMap);
String hMapString = hMap.toString();
hMapString = hMapString.replace(“{“,”");
hMapString = hMapString.replace(“}”,”");

StringTokenizer hMapStringTokens = new StringTokenizer(hMapString, “,”);
while (hMapStringTokens.hasMoreTokens()) {
StringTokenizer keyValueTokens = new StringTokenizer(
hMapStringTokens.nextToken(), “=”);
while (keyValueTokens.hasMoreTokens()) {
System.out.println(“Token->” + keyValueTokens.nextToken());
}
}
}

public static void main(String[] args){
new Test();
}

}

Output:

{Name=Mahesh, Age=26, Company=Logica, Designation=Software Engineer}
Token->Name
Token->Mahesh
Token-> Age
Token->26
Token-> Company
Token->Logica
Token-> Designation
Token->Software Engineer

By: Mahesh Kumawat

Mahesh Kumawat — Tue, 26 Oct 2010 05:10:31 +0000

I was reading your articles last day[actually first time:-(]..
I have a query while working with StringTokenizer. Please see the code below and please let me know what is wrong in that and why it is throwing PatternSysntaxException? Is it wrong way to use?
class TestHashMap{
public TestHashMap(){
HashMap hMap=new HashMap();
hMap.put(“Name”, “Mahesh”);
hMap.put(“Age”, 26);
hMap.put(“Designation”, “Software Engineer”);
hMap.put(“Company”, “Logica”);
System.out.println(hMap);
String hMapString = hMap.toString();
hMapString = hMapString.replaceAll(“{“, “”);
StringTokenizer hMapStringTokens=new StringTokenizer(hMapString, “,”);
while(hMapStringTokens.hasMoreTokens()){
StringTokenizer keyValueTokens=new StringTokenizer(hMapStringTokens.nextToken(),”=”);
while(keyValueTokens.hasMoreTokens()){
System.out.println(“Token->”+keyValueTokens.nextToken());
}
}
}
}

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By: Prashant Pandey

By: Mahesh Kumawat