How do I delete a word at a time?

Question

How do I delete a word at a time?

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#1 by (1 votes)
#2 by (1 votes)

1

I'm using this method to delete the last character entered in a TextView:

texto = txtTexto.getText().toString();
int length = texto.length();  
txtTexto.setText(texto.substring(0, length - 1));

java android

asked by anonymous 08.03.2015 / 14:15

2 answers

1

Use replace :

texto.replace("seno","")

08.03.2015 / 14:21

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score 1 · Accepted Answer

You can use the String#replace() to delete it.

But if you do:

texto = txtTexto.getText().toString();
texto.replace("seno", "");

The above code will not work as expected, this will not modify the calling object because strings (or rather, variables ) in Java are usable , then what you need to do is assign the result to a new string or to the same variable so :

texto = txtTexto.getText().toString();
texto = texto.replace("seno", "");

Other similar functions that may come in handy to you:

String#replaceFirst() : Replaces the first occurrence of a word in a text.
String#replaceAll() : Does the same thing as the String#replace() ", but this accepts the use of regular expressions.