Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
7th Edition
ISBN: 9780134802213
Author: Tony Gaddis
Publisher: PEARSON
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Question
Chapter 5, Problem 6AW
Program Plan Intro
Methods:
- The methods could be used to break a complex program into small pieces.
- The “void” method simply executes a statements group and then terminates.
- A value returning method would return a value to statement that has called it.
- While calling a method, program would branch to that method.
- It would then execute statements in its body.
- The values that are sent into a method are termed as “arguments”.
- A “parameter” denotes a special variable that holds a value that is being passed into a method.
- The “passed by value” means that only copy of a value of argument is been passed into parameter variable.
- A “local variable” is been declared inside a method, it is not accessible for statements outside method.
- A process in which a problem is been divided into smaller pieces is termed as “functional decomposition”.
Example:
Consider the example of method definition which is given below:
Public static void method()
{
Statement;
}
Here, “statement” denotes the body of method, that is to be executed when “method()” is been called.
Given code:
//Define a method display()
public static void display(int arg1 , double arg2, char arg3)
{
//Display values
System.out.println("The values are " + arg1 + " " + arg2 + ", and"+ arg3);
}
//Intialize variable
char initial = 'T';
//Intialize variable
int age = 25;
//Intialize variable
double income = 50000.00;
Explanation:
- Define a method “display()” to display the values of arguments provided to method.
- Display the values.
- Initialize values for variables “initial”, “age” and “income”.
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Chapter 5 Solutions
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
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