Check if a string contains a substring AND save the string from that point

Question

Hello if a have the string:String myString = "This is my good string.,

I want to check if the word "my" is contained in myString, and so i want to transform myString in myString = "my good string.

I tryied this code per verify the subrstring in the string:

String myString = "this is my good string.";
String mySubString = "my";

if (myString.toLowerCase().contains(mySubString.toLowerCase()) {
  return true;
}

But now how can i take myString from "my..." to the end of that String? Thank you!

Use: int positionOfMy = myString.indexOf("my"); to get position of "my" and String myTransformedString = myString.substring(positionOfMy); to get substring you're looking for — Honza Musil
– Honza Musil, Commented Feb 12, 2017 at 15:15

leoybkim · Accepted Answer · 2017-02-12 15:38:00Z

1

First find out the index of word "my"from your original string.

int i = myString.indexOf(mySubString);

Then reassign your string to a substring that will begin at that index until the end of string.

myString = myString.substring(i);

answered Feb 12, 2017 at 15:38

leoybkim

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Thomas Lehoux · Accepted Answer · 2017-02-12 17:05:17Z

0

With regex :

myString = myString.replaceFirst(".*(?=my)", "");

answered Feb 12, 2017 at 17:05

Thomas Lehoux

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Comments

Lucky · Accepted Answer · 2017-02-14 06:24:20Z

0

String s="this is my good string";

indexOf() finds the starting index of "my". substring() finds the String, that starts with "my".

    String st=s.substring(s.indexOf("my",0));

answered Feb 14, 2017 at 6:24

Lucky

1

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