How to replace the first character of a String in Android

Question

I am doing an app wherein the user is required to enter his mobile number. In order for my app to be user friendly, I am providing a format for them (e.g. 09XX-XXX-XXXX). After the registration process, the app will automatically text a certain number which compose the user's FirstName, Last Name and Mobile Number. In order for the server to contact the user, I must replace the '0' (which is the first character) with '+63'. Can somebody help me on how to replace it?

score 10 · Accepted Answer · answered Sep 27 '13 at 09:10

10

You can do like this

String str = "09XX-XXX-XXXX";
str = "+63"+str.substring(1);

answered Sep 27 '13 at 09:10

NARESH REDDY

682
4
11

score 1 · Answer 2 · answered Sep 27 '13 at 09:13

1

Replacing the first "0" is as simple as:

String phone = "09XX-XXX-XXXX";

phone = "+63"+phone.substring(1);

answered Sep 27 '13 at 09:13

Oladapo Omonayajo

992
9
14

score 0 · Answer 3 · answered Sep 27 '13 at 09:06

0

String str="09XX-XXX-XXXX";
str=str.substring(1,str.length());

try this it will replace first character from the string

answered Sep 27 '13 at 09:06

Ali Ahmad

1,351
9
11

how can I replace the 0 into '+63'? – androidBoomer Sep 27 '13 at 09:09
give whole text and output to be get – Ali Ahmad Sep 27 '13 at 09:12
my number is 07875780025 then it will convert all 0 to +63. i need only first 0 is change. – Ramesh Bhati Feb 26 '18 at 06:36
Use as mention below str="+63"+str.substring(1,str.length()); – Ali Ahmad Feb 26 '18 at 09:05

score 0 · Answer 4 · answered Sep 27 '13 at 09:17

You have to change the first character only if it is written by user use below code it will also adds validation if zero is inserted by user or not.

String str = "09XX-XXX-XXXX";


if(str.substring(0,1).equals("0"))
        {
            str = "+63"+str.substring(1);

        }
else
{
str = "+63"+str;
}

score 0 · Answer 5 · answered Sep 27 '13 at 09:18

0

just try this..

    String someString = "0";
    String str = someString.replace("0", "+63");
    Log.v("hari", "str:"+str);

    or

     String someString = "0 9854172 common";
    String str = someString.replace("0", "+63");
    Log.v("hari", "str:"+str);

answered Sep 27 '13 at 09:18

harikrishnan

1,985
4
32
63

2

This is incorrect , it will replace '0' with '+63' in the whole string . its not what he has asked. – Jitender Dev Sep 27 '13 at 09:20
i may not understand question. – harikrishnan Sep 27 '13 at 09:22
my number is 07875780025 then it will convert all 0 to +63. i need only first 0 is change. – Ramesh Bhati Feb 26 '18 at 06:33

score 0 · Answer 6 · edited May 23 '17 at 11:53

0

The question is duplicate of How to replace a plus character using Java's String.replaceAll method. Try the followings.

String str = "09XX-XXX-XXXX";
str.replaceFirst("0", "\\+63");

edited May 23 '17 at 11:53

Community

1
1

answered Sep 27 '13 at 09:21

Pradip

3,189
3
22
27

How to replace the first character of a String in Android

6 Answers6