How to compare symbols literally in Java?

[honest sorrel]

For example, how do I check if a string has + in it. If I put it into .charAt in a linear search, it thinks I’m combining something. Tyvm

[stark ledge]

you could use contains('+')

But it just does a linear search, so you should be able to do it yourself if you tried

[honest sorrel]

I tried, Java thinks I’m combining strings not the literal symbol

[light cargo]

Show what you tried.

[stable portal]

you want the char value searched?

I don't really understand what you mean by combining strings

[light cargo]

public class CombingingStrings {

    public static void main(String[] args) {
        String cat = "cat";
        String dog = "dog";
        String catdog = cat + dog;
        System.out.println(catdog);

    }

}

Chances are good that they're talking about concatenating strings.

[honest sorrel]

This is what Java thinks I’m doing when search for “+”

It keep saying smth like not a char

I forgot the exact error

[stable portal]

could you show some code?