Select the correct answerWhich of the following operators can operate on a boolean variable? 1. && 2. == 3. ?: 4. +=Options1, 2 & 41 & 43 & 21, 2 & 3

Break Down the Problem

1. Identify the operators listed in the options.
2. Determine which of these operators can be used with boolean variables.

Relevant Concepts

1. Logical AND (&&): Operates on boolean values to return a boolean result.
2. Equality (==): Compares two boolean values and returns a boolean result.
3. Ternary Operator (?:): Can be used to select between two boolean outcomes based on a condition.
4. Addition Assignment (+=): Generally used for numeric types, and not applicable to boolean variables.

Analysis and Detail

1. && (Logical AND):

   • Operates on boolean variables: true && false gives false.

2. == (Equality):

   • Compares two boolean variables: true == false gives false.

3. ?: (Ternary Operator):

   • Can evaluate between two boolean expressions.
   • Example: boolean result = condition ? true : false;

4. += (Addition Assignment):

   • Not applicable for booleans as it aims to add numerical values.

Verify and Summarize

• Based on the analysis:
  • Operators &&, ==, and ?: can operate on boolean variables.
  • The operator += cannot operate on boolean variables as it's not designed for that type.

Final Answer

The correct options are 1, 2 & 3.