Generic class for different currency

public class GenericFormatCurrency {

String preixStr="";

String postfixStr = "";

int postfixLen=0;

String[] preixStrArray;

int prefixArrayLen = 0;

int prefixLen1=0;

int prefixLen2=0;

format(String formatStr){

preixStr=formatStr.substring(0,formatStr.lastIndexOf("."));

postfixStr=formatStr.substring(formatStr.lastIndexOf(".")+1);

postfixLen = postfixStr.length();

preixStrArray = preixStr.split(",");

prefixArrayLen = preixStrArray.length;

if(prefixArrayLen-1==0){

prefixLen1=preixStrArray[0].length();

}else{

prefixLen1=preixStrArray[prefixArrayLen-1].length();

prefixLen2=preixStrArray[prefixArrayLen-2].length();

}

}

public void formaNumber(String number) {

//format format = new format("##,####.0000");

//String number="87654321.12345";

String pre=number.substring(0,number.lastIndexOf("."));

String postnum=number.substring(number.lastIndexOf(".")+1);

String output="";

int length1=this.prefixLen1;

int length2=this.prefixLen2;

if(postnum.trim().length()<=this.postfixLen){

output="."+postnum;

}else{

output="."+postnum.substring(0,this.postfixLen);

}

System.out.println(output);

if(pre.trim().length()

output=pre+output ;

}else{

while(pre.trim().length()>0){

output=","+pre.substring(pre.trim().length()-length1,pre.trim().length())+output;

pre = pre.substring(0,pre.trim().length()-length1);

length1 = length2;

if(pre.trim().length()<=this.prefixLen1){

output = pre+output;

break;

}

}

}

System.out.println(output);

}

public static void main(String[] args) {

GenericFormatCurrency format = new GenericFormatCurrency("##,####.0000");

String number="87654321.12345";

format.formaNumber(number);

System.out.println("-------------------------");

format.formaNumber("87654321.1234");

}

}