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Convert the String to camelCase in java: Quick way

Here is the code to convert the data to Camel case i.e. First letter in word is capital and other are small case

import java.util.StringTokenizer;

private static String converCamelCase(String strdata){

StringBuffer strbufCamelCase = new StringBuffer();

StringTokenizer st = new StringTokenizer(strdata);

if(null == strdata || strdata.length() == 0){

return "";

}

while(st.hasMoreTokens()){

String strWord = st.nextToken();

strbufCamelCase.append(strWord.substring(0,1).toUpperCase());

if(strWord.length()>1){

strbufCamelCase.append(strWord.substring(1).toLowerCase());

}

strbufCamelCase.append(" ");

}

return strbufCamelCase.toString();

}