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For example, a string with phone +5531984892883. I would like to check if the first 3 characters are +55. If they are +55, replace them with 0 (zero). How can I do that?
1 answer
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Use the method replace:
final String telefone = "+5531984892883";
final String outroTelefone = "31984892883";
System.out.println("Telefone :" + telefone);
System.out.println("Telefone sem o codigo :" + telefone.replace("+55", "0"));
System.out.println();
System.out.println("Outro telefone :" + outroTelefone);
System.out.println("Outro telefone sem o codigo :" + outroTelefone.replace("+55", "0"));
Exit:
Telefone :+5531984892883
Telefone sem o codigo :031984892883
Outro telefone :31984892883
Outro telefone sem o codigo :31984892883
Online example here.
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It is necessary to check before, to replace. As there may not be these characters, there is some problem in not checking?
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@Henriquemendes is not required. See updated response
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The problem with that is that if the country code is exactly 5 and soon after you see the number started with 5, your program goes to bag. heuhe;
– viana