Difference between revisions of "Maximum Tutorial"

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(Taxi charges)
(Commission Charges)
 
(One intermediate revision by one other user not shown)
Line 53: Line 53:
 
<shell lang="java" className="P">
 
<shell lang="java" className="P">
 
public class P{
 
public class P{
public static void main(String [] argv){
+
public static void main(String [] argv)
 +
{
 
double [] ol = {20.0, 50.0, 100.0};
 
double [] ol = {20.0, 50.0, 100.0};
 
for (double i: ol)
 
for (double i: ol)
System.out.printf("amount:%7.2f\tcommission:%7.2f\n",i,commission(i));
+
{
 +
  System.out.printf("amount:%7.2f\tcommission:%7.2f\n",i,commission(i));
 +
}
 
}
 
}
 
QcQ
 
QcQ
 
}</shell>
 
}</shell>
 
<prog lang="java">
 
<prog lang="java">
static double commission(double amount){
+
static double commission(double amount)
 +
{
 
   return Math.max(10*amount/100,7.0);
 
   return Math.max(10*amount/100,7.0);
 
}
 
}
 
</prog>
 
</prog>
 
<answer lang="java">
 
<answer lang="java">
static double commission(double amount){
+
static double commission(double amount)
 +
{
 
   return Math.max(amount*0.1,5.0);
 
   return Math.max(amount*0.1,5.0);
 
}
 
}
 
</answer>
 
</answer>
 
</question>
 
</question>

Latest revision as of 11:26, 25 September 2012

The max function takes two numbers and returns the largest.

int x = Math.max(3,5);

In the above example x will be set to 5.

Of course there is also a function Math.min

Taxi charges

A taxi ride costs £2.00 per mile, but there is a minimum charge of £3.00 for short distances.



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Commission Charges

The commission charged for converting currency is 10% of the amount or £5, which ever is the larger.

We can use the function Math.max to solve this problem. The function, which is part of the core will return the larger of two numbers.

We do not need to use the if statement here (but you can if you want to)



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