消除字符串中的空格

public static String getTrimString(String str)
{
StringBuffer sb = new StringBuffer("");
String myString = str.trim();
if (myString.contains(" "))
{
sb.append(myString.substring(0, myString.indexOf(" ")));
myString = myString.substring(myString.indexOf(" "),
myString.length());
sb.append(getTrimString(myString)).toString();
}
else
{
sb.append(myString);
}
return sb.toString();
}