1.Write a program that takes the radius of a sphere (a floating-point number) as

Question

1.Write a program that takes the radius of a sphere (a floating-point number) as input and outputs the sphere’s diameter, circumference, surface area, and volume.

2.An employee’s total weekly pay equals the hourly wage multiplied by the total number of regular hours plus any overtime pay. Overtime pay equals the total overtime hours multiplied by 1.5 times the hourly wage. Write a program that takes as inputs the hourly wage, total regular hours, and total overtime hours and displays an employee’s total weekly pay

Explanation / Answer

2)

import java.io.BufferedReader;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStreamReader;

import java.util.Scanner;

import java.util.StringTokenizer;

public class TotalWeeklyPayReReloadedUsingStringMethods {

// variables necessary for file input

private static FileInputStream inFile;

private static InputStreamReader inReader;

private static BufferedReader reader;

// StringTokenizer variable used to separate line into different data elements

private static StringTokenizer strTkn;

// program variables to hold data

private static String line, word;

private static String firstname, lastname;

private static double totalRegHours, totalOverHours, regularHours, overtimeHours, wage, totalPay;

// throws IOException will have the operating system handle any problems

// that may occur while

// throws IOException will have the operating system handle any problems

// that may occur while attempting to acquired data from the file.

public static void main (String args[]) throws IOException

{

initFile();  

getData();

calcTotal();

printResults();

funFacts();

// closing the data file

inFile.close();

}

// preparing the file for input

public static void initFile() throws IOException

{

inFile = new FileInputStream ("VHSP35data1.txt"); // this is a unix path

inReader = new InputStreamReader(inFile);

reader = new BufferedReader(inReader);

}

//data acquisition method

public static void getData() throws IOException

{

line = reader.readLine(); //acquiring the data line as a string

System.out.println ("data line = " + line ); // view data line as one string

System.out.println();

strTkn = new StringTokenizer(line); // attaching the string tokenizer to the line

// placing the first word in the dataline into a string variable   

firstname = strTkn.nextToken();

// extracting the parts of the line into separate int and double variables

lastname = strTkn.nextToken();

// totalRegHours, totalOverHours, regularHours, overtimeHours, wage, totalPay

wage = Double.parseDouble(strTkn.nextToken());

// Mon

totalRegHours = Double.parseDouble(strTkn.nextToken());

totalOverHours = Double.parseDouble(strTkn.nextToken());

// Tue

totalRegHours = totalRegHours + Double.parseDouble(strTkn.nextToken());

totalOverHours = totalOverHours + Double.parseDouble(strTkn.nextToken());

// Wed

totalRegHours = totalRegHours + Double.parseDouble(strTkn.nextToken());

totalOverHours = totalOverHours + Double.parseDouble(strTkn.nextToken());

// Thu

totalRegHours = totalRegHours + Double.parseDouble(strTkn.nextToken());

totalOverHours = totalOverHours + Double.parseDouble(strTkn.nextToken());

// Fri

totalRegHours = totalRegHours + Double.parseDouble(strTkn.nextToken());

totalOverHours = totalOverHours + Double.parseDouble(strTkn.nextToken());

}  

public static void calcTotal() {

totalPay = totalRegHours * wage + totalOverHours * wage * 1.5;

}

public static void printResults() {

System.out.println(firstname + " " + lastname + "'s weekly total pay is " + totalPay + " dollars.");

}

public static void funFacts() {

System.out.println("Fun Facts:");

System.out.println(firstname + " contains " + firstname.length() + " letters");

System.out.println("The 5th character in " + firstname + " is " + firstname.charAt(4));

System.out.println("K replaced with D in " + firstname + " is " + firstname.replace('K', 'D'));

System.out.println("The 2nd-5th characters in " + firstname + " is " + firstname.substring(1, 4));

if (firstname.equalsIgnoreCase("kermit")){

System.out.println(firstname + " matches 'kermit', non-case sensetive.");

}

else {

System.out.println(firstname + " does not match 'kermit', non-case sensetive.");

}

System.out.println(lastname + " in uppercase letters is " + lastname.toUpperCase());

System.out.println(lastname + " in lowercase letters is " + lastname.toLowerCase());

if (firstname.equals(lastname)){

System.out.println("This person has the exact same first and last name");

}

else {

System.out.println("This person has a different first and last name");

}

System.out.println("The letter 'o' in " + lastname + " is in character " + (lastname.indexOf('o') + 1));

System.out.println(lastname + " with leading/trailing spaces removed is " + lastname.trim() + " - there are none!");

}

}

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