I have a seemingly simple problem that I just can't seem to figure out.

I am taking a string input from the user and replacing the letter x with the letter y and y with x. So for example the sentence:

"Sally likes sax."
would now be
"Sallx likes say."

Would something like this work or would it just replace the letters then replace again?

EditText et = (EditText) findViewById(R.id.textReplace);
String newText = et.getText().toString();
str= str.replace("x","y");
str= str.replace("y","x");
et.setText(str);

essentially all the y will become x

This post was edited by carteblanche on Sep 8 2017 07:19pm

Thought so. I just ended up replacing x with a random string like "zcx__x" and then replacing y and then replacing x back to y.

if this is for an assignment or someone is evaluating how you write your code, don't.

if this is just for your own purposes, that's fine.

Replacing twice could produce errors so. You could iterate through each character and replace as you go. Java 8 way to do this using streams is something like:

maybe do something like this



Output

Before: 0000000yyy00000xxx0000000y00000x
After: 0000000xxx00000yyy0000000x00000y

This post was edited by labatymo on Sep 12 2017 09:04am

Use Godot, then android export

much better ui tools