public SimpleExpression<Character> charAt(int i) {
        return charAt(ConstantImpl.create(i));
    }
Create a {@code this.charAt(i)} expression

<p>Get the character at the given index</p>

@param i zero based index
@return this.charAt(i)
@see java.lang.String#charAt(int)
querydsl-core/src/main/java/com/querydsl/core/types/dsl/StringExpression.java