how to display substring of a string in textView

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i am trying to get a substring of a string to be displayed from an editText to a textView. i used addTextChangedListener to the edittext to perform this operation

in this method i am trying to get a substring from the edittext to be shown in the textView on running the app nothing happens.

Java

public void afterTextChanged(Editable s) {
			// TODO Auto-generated method stub
			TextView gtin = (TextView) findViewById(R.id.textView2);
			String sgtin=gtin.getText().toString();
			sgtin.substring(0,7);
			   gtin.setText(sgtin);
		}

where have i possible gone wrong. need guidence

Posted 5-Jun-15 18:41pm

Rahul Ramakrishnan

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Mehdi Gholam · Answer 1 · 2015-06-05T18:52:00

Solution 1

Java's substring() returns a string : http://www.tutorialspoint.com/java/java_string_substring.htm[^]
so you should :

Java

String str = sgtin.substring(0,7);
gtin.setText(str);

Posted 5-Jun-15 18:52pm

Mehdi Gholam

Comments

Rahul Ramakrishnan 6-Jun-15 1:02am

i am getting lots of errors