What is the shortest method to check if a character exists in a String or not?

Question

Could someone tell me what is the shortest method to check if a character exists in a String or not?

Answer 1

The shortest way to check for the availability of a character in a String without having to manually iterate through it is done via a pre-built function inside JAVA known as indexOf().

If we have to check for the availability of a character 'a' inside a String y="bac", we use:

int v=y.indexOf('a');

The function returns the index of the character in the String on its availability and returns '-1' otherwise. Here, the value of v will be  '1' since the character 'a' is on index number 1.