Java Reference
In-Depth Information
Display 3.1
Tax Program
1
import
java.util.Scanner;
2
public
class
IncomeTax
3{
4
public
static
void
main(String[] args)
5
{
6
Scanner keyboard =
new
Scanner(System.in);
7
double
netIncome, tax, fivePercentTax, tenPercentTax;
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System.out.println("Enter net income.\n"
9
+ "Do not include a dollar sign or any commas.");
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netIncome = keyboard.nextDouble( );
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if
(netIncome <= 15000)
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tax = 0;
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else
if
((netIncome > 15000) && (netIncome <= 30000))
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//tax = 5% of amount over $15,000
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tax = (0.05*(netIncome - 15000));
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else
//netIncome > $30,000
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{
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//fivePercentTax = 5% of income from $15,000 to $30,000.
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fivePercentTax = 0.05*15000;
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//tenPercentTax = 10% of income over $30,000.
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tenPercentTax = 0.10*(netIncome - 30000);
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tax = (fivePercentTax + tenPercentTax);
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}
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System.out.printf("Tax due = $%.2f", tax);
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}
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}
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Sample Dialogue
Enter net income.
Do not include a dollar sign or any commas.
40000
Tax due = $1750.00
The
switch
Statement
The
switch
statement
is the only other kind of Java statement that implements multi-
way branches. The syntax for a
switch
statement and a simple example are shown in
the box entitled “The
switch
Statement.”
switch
statement
