Program 2 (30 points) Valid Phone Numbers.... in java

Phone number can have one of several valid formats: In particular, strings like

419-460-1212 (419)460-1212 460-1212

are valid but strings like

419-460 (419)460-a321 46012-12

are not. Write a program to read in a string and check whether it has the format

ddd-ddd-dddd

where each d is a digit.

Program 3 (90 points) FastestRunner.java A group of 16 students decided to run in the Columbus Marathon. Their names and times (in minutes) are below:

Name Time (minutes)

Elena	341
Thomas	273
Hamilton	278
Suzie	329
Phil	445
Matt	402
Alex	388
Emma	275
John	243
James	334
Jane	412
Emily	393
Daniel	299
Neda	343
Aaron	317
Kate	265

Find the fastest and the second fastest runner.

In particular, write a program as follows.Print the list of runners and times as above. Then print the name of the fastest runner and his/her time (in hours and minutes). Also, find the second fastest runner. Print the name and his/her time (in hours and minutes).

The program should have a method that takes as input an array of integers and returns the index corresponding to the person with the lowest time. The program should apply this method to the array of running times to find the fastest runner.

Also include a second method to find the second-best runner. The second method should use the first method to determine the best runner, and then returns the index corresponding to the person with the second lowest time.

Extra Credit (10 points): Print the list of runners and times nicely formatted in columns as displayed above. One option is to use the printf() method.

Here is some program code to get started:

class Marathon {

public static void main (String[] arguments){

final int numRunners = 16;

String[] names ={"Elena", "Thomas", "Hamilton", "Suzie", "Phil", "Matt",

"Alex", "Emma", "John", "James", "Jane", "Emily", "Daniel",

"Neda","Aaron", "Kate"};

int[] times ={341, 273, 278, 329, 445, 402, 388, 275, 243, 334, 412,

393, 299,343, 317, 265};

. . .

for (int i = 0; i < numRunners; i++) {

System.out.println(names[i]+ ": " + times[i]);

}

. . .