Cclass Rectangle {
int width, height;
int area() {
return width * height;
}
}
Dclass Rectangle {
int width, height;
int area() {
width * height;
}
}
Step-by-Step Solution
Solution:
Step 1: Check method return type and syntax
The method area() should return an int and use return keyword with expression.
Step 2: Validate each option
class Rectangle {
int width, height;
int area() {
return width * height;
}
} correctly declares method returning int with return statement. class Rectangle {
int width, height;
void area() {
return width * height;
}
} uses void but returns a value (error). class Rectangle {
int width, height;
int area {
return width * height;
}
} misses parentheses for method. class Rectangle {
int width, height;
int area() {
width * height;
}
} misses return statement.
Final Answer:
class Rectangle {
int width, height;
int area() {
return width * height;
}
} -> Option C
Quick Check:
Methods returning values must declare return type and use return [OK]
Quick Trick:Use return type and return statement for methods returning values [OK]
Common Mistakes:
Using void but returning value
Missing parentheses in method
Omitting return keyword
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