Write a Java method that takes a variable of type String and returns a boolean value. The method returns true if the taken string contains a valid password, false otherwise. A valid password should satisfy all the following conditions: • It can contain any character • It contains at least 6 but not more than 20 characters The number of letters (both uppercase and lowercase) is equal to the number of digits The method's header is as follows. public static boolean password (String s)

Write a Java method that takes a variable of type String and returns a boolean value. The method returns true if the taken string contains a valid password, false otherwise. A valid password should satisfy all the following conditions: • It can contain any character • It contains at least 6 but not more than 20 characters The number of letters (both uppercase and lowercase) is equal to the number of digits The method's header is as follows. public static boolean password (String s)

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Write a Java method named check() that checks the validity of a password received as string parameter. To be valid, a password should contain at least: 3 letters, 2 digits, and 1 character from {‘-’, ‘_’}. If the password is valid the method returns true, otherwise it returns false. To test your method, write a main() method that enables the user to input a password as a string, removes eventual extra spaces from it, sends it to check(), and displays the returned decision (the password is valid or not).
Write a java class method named addQuotes that takes one parameter of type String. The method should return a string that's indentical to it's argument, but with a double quote character added at the beginning and end of the string.
Write a Java program that implements static method roundSum() so that given 3 ints: a, b, and c; return the sum of their rounded values. We'll round an int value up to the next multiple of 10 if its rightmost digit is 5 or more, so 15 rounds up to 20. Alternately, round down to the previous multiple of 10 if its rightmost digit is less than 5, so 12 rounds down to 10. roundSum(16, 17, 18) → 50roundSum(12, 13, 14) → 40roundSum(6, 4, 4) → 10 The examples of input and output you can see in the picture. (the code structure should be as in the second picture)
Java Write a public static method named getStringTitleCased that takes in 1 argument of type String and capitalizes the first letter of each word in the String, then returns the title cased string. Example: Input: “the dog ate my homework!” Returns: “The Dog Ate My Homework!” Input: “tHe Dog atE My HOMEwoRk!” Returns: “The Dog Ate My Homework!” Input: “THE DOG ATE MY HOMEWORK!” Returns: “The Dog Ate My Homework!”
Define a method printFeetInchShort, with int parameters numFeet and numInches, that prints using ' and " shorthand. End with a newline. Ex: printFeetInchShort(5, 8) prints: 5' 8" Hint: Use \" to print a double quote. import java.util.Scanner; public class HeightPrinter { /* Your solution goes here */ public static void main (String [] args) { Scanner scnr = new Scanner(System.in); int userFeet; int userInches; userFeet = scnr.nextInt(); userInches = scnr.nextInt(); printFeetInchShort(userFeet, userInches); // Will be run with (5, 8), then (4, 11)}}
Write a java method sumOfAllOddNumbersBetween() that takes as input two integers and returns the sum of all odd numbers that are between the two given numbers (the given numbers should be excluded from the sum). Write a main program to test your method by accepting the two integers from the user.
*in java* Write a method printShampooInstructions(), with int parameter numCycles, and void return type. If numCycles is less than 1, print "Too few.". If more than 4, print "Too many.". Else, print "N: Lather and rinse." numCycles times, where N is the cycle number, followed by "Done.". End with a newline. Example output with input 2: 1: Lather and rinse. 2: Lather and rinse. Done. Hint: Declare and use a loop variable. import java.util.Scanner; public class ShampooMethod { /* Your solution goes here */ public static void main (String [] args) {Scanner scnr = new Scanner(System.in);int userCycles; userCycles = scnr.nextInt();printShampooInstructions(userCycles);}}
Write a Java program which reads a string from the user and calls a method findVowels() from the main() method which passes the string as argument and prints the number of occurrences of each vowel (i.e., a, e, i, o, and u) present in that string. Read the string from the user using the Scanner class. Sample input:The quick brown fox jumps over the lazy dogSample output:a: 1e: 3i: 1o: 4u: 2Sample input:Merry Christmas!Sample output:a: 1e: 1i: 1o: 0u: 0
Write a Java program that will 1. Ask the user to type in a sentence, using a JOptionPane.showInputDialog(). 2. The program will examine each letter in the string and count how many time the upper-case letter 'E' appears, and how many times the lower-case letter 'e' appears. The key here is to use the charAt method in class String. 3. Using a JOptionPane.showMessageDialog(), tell the user how many upper and lower case e's were in the string. 4. Repeat this process until the user types the word "Stop". (Check out the method equalsIgnoreCase in class String to cover all upper/lower case possibilities of the word "STOP"
Write a Java method splitName() that takes a string (that contains 1 word or more (space-separated)), split it into words, count the number of words, makes the first letter of each word capital, and display each modified word in a line. Write main() method that reads a full name (use nextLine() of the Scanner), removes eventual extra spaces, and makes all characters of the full name in lower case. Then, sends the name to splitName() method and displays the returned value. Hints: use only String methods studied so far (don’t use split() which require array manipulations that we didn’t study it yet)
Write a Java program that will ask for a string of letters . Each letter in the alphabet is given the following number code as assignment . Print out the number code of each letter from the input in reverse . Ask if the operation should be done again, if Yes, Return to 1. if No. Terminate the program Create at least 2 methods aside from your main method in implementing a solution for this problem.
Write a Java method splitName() that takes a string (that contains 1 word or more (space-separated)), split it into words, count the number of words, makes the first letter of each word capital, and display each modified word in a line.Write main() method that reads a full name (use nextLine() of the Scanner), removes eventual extra spaces, and makes all characters of the full name in lower case. Then, sends the name to splitName() method and displays the returned value.