Operators and precedence in programming languages

An incorrect understanding of operators and precedence can create bugs in programs. The purpose of this study is to explore programmers understanding, interpretation and perception of operators and precedence issues. Parentheses have the highest precedence in programming languages. So, the important of parentheses in expressions will be tested. The findings may lead to an improvement to rules for operators and precedence in programming languages. The findings will also provide both theoretical analyses and guidelines for developers and language designers.