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  • Add any character to String on a particular location

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    Sometimes, we need to change some special character on String to fulfill our requirements.

    For example, we need to show phone number, i.e, 2001256443 as (200)-125-6443

    Now we use the substring method of String to solve it. We just add String on the particular location.

    String phone = "2001256443";
    String mobile = null;
    
    mobile = "(" + phone.substring(0, 3) + ")" + phone.substring(3, 6) + "-" + phone.substring(6, phone.length());
    System.out.println("Phone : "+mobile);

    O/P:

    Phone : (200)-125-6443

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