jimmy087

public class Exercise1 {
  public static void main(String[] args) {
		java.util.Scanner input = new java.util.Scanner(System.in);
		System.out.print("Enter employee name: ");
		String employeeName = input.nextLine();
		System.out.println("Number of hours worked: ");
		int numberOfHoursWorked = input.nextInt();
		System.out.println("Hourly wage rate: ");
		double wageRate = input.nextDouble();
		System.out.println("Enter the Federal tax rate: ");

jimmy087

// A program for command line calculator.

public class Calculator {
  public static void main(String[] args) {
		if (args.length != 1) {
			System.out.println("Incorrect input... there must be single space between operands.");
			System.exit(1);
		}
		
		// The result of the operation.

jimmy087

public class CheckPalindrome {
  public static void main(String[] args) {
		java.util.Scanner input = new java.util.Scanner(System.in);
		System.out.println("Please enter the string: " );
		String s = input.nextLine();
		if (isPalindrome(s)) {
			System.out.print( s + " is a palindrome.");
		}
		else {
			System.out.print(s + " is not a palindrome.");

jimmy087

public class CountEachLetter {
  public static void main(String[] args) {
		java.util.Scanner input = new java.util.Scanner(System.in);
		System.out.println("Please enter the string: ");
		String s = input.nextLine();
		
		// Invoke the countLetters method to count each letter
		int[] counts = countLetters(s.toLowerCase());
		
		//Display results

jimmy087

import java.util.Scanner;
public class Exercise9_1 {
  public static void main(String[] args) {
		System.out.println("Please enter your SSN: ");
		Scanner input = new Scanner(System.in);
		String s = input.nextLine();
		if (s.matches("\\d{3}-\\d{2}-\\d{4}")) {
			System.out.println("The SSN entered by you is correct.");
		}
		else {

jimmy087

import java.util.Scanner;
public class Exercise9_2 {
  public static void main(String[] args) {
		@SuppressWarnings("resource")
		Scanner input = new Scanner(System.in);
		System.out.println("Please enter the first string: ");
		String s1 = input.nextLine();
		System.out.println("Please enter the second string: ");
		String s2 = input.nextLine();
		if (s1.indexOf(s2) != -1) {

jimmy087

import java.util.Scanner;

public class Exercise9_3 {
  public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		System.out.println("Please enter the password: ");
		String password = input.nextLine();
		if (isValid(password)) {
			System.out.println("The password is valid.");
		}

jimmy087

import java.util.Scanner;

public class Exercise9_4 {
  public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		System.out.println("Please enter a string: ");
		String s1 = input.nextLine();
		System.out.println("Please enter a character: ");
		char s2 = input.nextLine().charAt(0);
		int counts = counts(s1, s2);

jimmy087

public class Exercise9_5 {
  public static void main(String[] args) {
		java.util.Scanner input = new java.util.Scanner(System.in);
		System.out.println("Please enter a string: ");
		String s1 = input.nextLine();
		int [] counts = countDigits(s1);
		
		// Display results.
		for (int i = 0; i < counts.length; i++) {
			if (counts [i] > 0) {

jimmy087

// A phone keypad

public class Exercise9_7 {
  public static void main(String[] args) {
		java.util.Scanner input = new java.util.Scanner(System.in);
		System.out.println("Please enter the string: ");
		String s1 = input.nextLine();
		if (isValid(s1)) {
			System.out.println("The number is valid.");
			String s2 = s1.toLowerCase();