3 Questions
What is the purpose of the '+' operator in Java?
String concatenation
What does the '--' operator do in Java?
Decrements a value by 1
What does the '!' operator do in Java?
Inverts the value of a boolean
Study Notes
Java Operators
- The '+' operator in Java serves multiple purposes: • String concatenation: combines two strings together • Arithmetic addition: adds two numbers together
- The '--' operator in Java is the decrement operator: • Decreases the value of a variable by 1 • Can be used in both postfix (e.g., x--) and prefix (e.g., --x) forms
- The '!' operator in Java is the logical NOT operator: • Reverses the boolean value of an expression • Returns true if the expression is false, and false if the expression is true
Test your knowledge of Java operators with this quiz. Learn about the simple assignment operator, arithmetic operators for addition, subtraction, multiplication, division, and remainder, as well as the unary operators for increment, decrement, and logical complement.
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