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Questions and Answers
What is a method in programming?
What is a method in programming?
- A set of variables and constants
- A sequence of instructions with a name (correct)
- A loop structure
- A mathematical function
How is a method declared in programming?
How is a method declared in programming?
- By assigning a value to a variable
- By creating an array
- By using conditional statements
- By defining a named block of code (correct)
What does the 'Math.pow(2, 3)' represent in Java?
What does the 'Math.pow(2, 3)' represent in Java?
- $2*3$
- $2^3$ (correct)
- $2+3$
- $2-3$
What do the parentheses () represent when calling a method?
What do the parentheses () represent when calling a method?
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What happens when a method returns a value to the calling code?
What happens when a method returns a value to the calling code?
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Study Notes
Methods in Programming
- A method is a block of code that performs a specific task and can be reused in a program.
Declaring a Method
- A method is declared by specifying the access level, return type, method name, and parameters in parentheses.
Math.pow(2, 3) in Java
- 'Math.pow(2, 3)' represents the method call to calculate the power of a number, where 2 is the base and 3 is the exponent, returning the result of 2 cubed (2³).
Parentheses in Method Calling
- The parentheses () represent the parameter list when calling a method, which can be empty or contain one or more argument values.
Method Return Value
- When a method returns a value to the calling code, the value is passed back to the caller, which can then be stored in a variable, used in an expression, or simply ignored.
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