TechFundu

Hi all,
I have a String s = "001 LEE MARCUM, 002 DEE DOUGLAS , 003 KAVI TATE";

It contanis empid and name .
i.e. 001 is empid and LEE is name.
Now i want my modified string to be "001, 002 , 003". Removing all the name values and making a string of only empid's .

How can i do this java ? Any help will be appreciated.
Thanks

you can use split funtion of String class which take regular expression. Don't use StringTokenizer class as it is deprecated now.

public String[] split(String regex)

String s = "001 LEE MARCUM, 002 DEE DOUGLAS , 003 KAVI TATE";
1.) String [] tokens = s.split(",");

2.) Loop through all the tokens and take out first three characters using String.substring(0,3) and add them in a StringBuilder object and also apppend character (,) after that and this will give you modified string which will have employee Ids onlyl.

Please refers these api docs at sun website.

java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html#split(java.lang.String)

java.sun.com/j2se/1.4.2/docs/api/java/ut...gex/Pattern.html#sum

Try the below code :

String arrayEmployee = "001 LEE, 002 DEE , 003 KAVI RST";
Scanner employees = new Scanner(arrayEmployee)
.useDelimiter(",");
StringBuilder str2 = new StringBuilder();
while (employees.hasNext()) {

String employee = employees.next();

String str1 = employee.substring(0,4);


str2 = str2.append(str1).append(",");


}
System.out.println("String built is ------" +str2);

}

Hope this will help you.

the code given above will work only the emplpoyee id is of size 3
i.e. 001 002 upto 999
or aaa to zzz


if the number can be of any size... we need to know the business rule for deciding if a value is employee id or no...