[boolean] Forum Topics

Hello, I'm trying to make a very basic + - calculator in java using constructors after watching thenewboston video tutorial I tried to experiment with it. My litle project is almost finished my only problem is that the boolean I use is being reset after I assign it. If someone …

Hello I cant figure out how to recive a boolean from a method in another class. public boolean arYatzy() { boolean yatzy = true; for (int i = 0; i < tarn.length - 1; i++) { yatzy = yatzy && (tarn[i] == tarn[i + 1]); } if (yatzy) { return …

Does anyone know a good way to force javascript to evaluate all operands in a boolean expression? In particular, what I am tring to do is essentially this: return isValid(a) && isValid(b) && isValid(c); while this technically does work, the function is responsible for highlighting invalid areas on the form …

Im trying to create a deck of cards using enums. I already have my enum declared, but I'm stuck in how exactly to create the deck of cards using a boolean array. So far i tried to initialize my constructor, but I don't know what direction to take now. Any …

Hi, I have a program that deals with stacks and queues in python. Part of the program compares items in 3 stacks that contain objects. The loop will run and compare all items in the top of the stacks and pop the item that has the highest value and appends …

#include<iostream> using namespace std; #include<string> #define INT_MAX 100000 #define INT_MIN 0 using namespace std; class Automobile { public: Automobile(); void read(); bool is_cheaper_than(??????) const; bool better_mileage_than(???????) const; bool better_finanace_than(??????) const; void print() const; private: string name; float price; float mileage; float finance; }; Automobile::Automobile() { name=" "; price=INT_MIN; mileage=INT_MAX; } …

I am working on a practice exam right now and I came across a write-your-own code problem that I can't figure out. The question is: > Modify your first function. In addition to returning the greatest value by pass-by-value, you should also sent a true/false value back to main() if …

I have a Sudoku puzzle and I need to make sure that each row and column have each number 1 through 9. What is the easiest way of doing this? The code snippet that I have so far is below. public static boolean rowsAreValid(int[][] array){ for(int i = 0; i …

The assignment requires program to read from a file into an array, use two boolean functions to validate certain data (set to "true" when there are no errors) then output any errors to a separate file. Everything works fine except for validating the rate. All the numbers are read into …

[CODE]class Date { private int day, month, year; // the date Date(int d, int m, int y){ day = d; month = m; year = y; } Date(){ }; void get() { day = Console.readInt(); month = Console.readInt(); year = Console.readInt(); } void put(){ System.out.println(day + "/" + month + …

Hi this is my first post, but I've lurked for a while usually finding answers to my questions in other threads, I couldn't find this one so I broke my posting cherry to ask. I know I'm missing something, probably really simple, but possibly I'm doing this completely wrong. I'm …

For some people it may be difficult to understand what Boolean is.Well, it's a type of algebra. We will be learning about three Boolean operators today-AND,OR,NOT The order for evaluating Boolean operators are as follows:- AND-If you have a code that should be executed if two conditions are true, you …

My program generates a list of random or pseudo random numbers between a certain range specified by the user through the console. My problem is when the user, or in this case myself, tries to generate a random number list specified by entering true(1) in the console the output is …

the following program is to print all possible sum combinations of a number for example 6=1+5,2+4,3+3,1+1+4,1+2+3 12=3+9,4+8,5+7,.......,1+1+2+3+5 but i m not getting any output...maybe there's a problem with proper ending of loops pls help[CODE]import java.io.*; public class sumpermutations { public void main()throws IOException { BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); int input,i,j,d=0,s=0,num=0,d1=0; …

hello this is my first C++ program my problem is that i cant find out to things frist is that when i rune it and sett the mathe type it is ignored laiter and hit shows alle offe the posbole mathe types ( that i have enterd +,-,/ and * …

print "Hello, World!" ;) Hi, everyone, Venku (a.k.a Python Newb) here. I just kind of randomly opened up Python today (I do that a lot), and I decided I would finally ask this: What does the "is" statement do in Python 2.7.1 (if the ver# matters)? I checked out the …

Hello, So I have a .txt file which is kind of built like: N 1234554321 Joe Jones Y 1234555432 Sarah Clark Y 1234321231 Kirah Williams N 1234212321 John Johnston The output, line by line, as the txt file is, and it works and all, I output "Y" or "N" I …

I am currently writing a program in which you input a word and the program then outputs all of the different ways the characters can be moved round into anagrams. I have wrote a way of turning the command line argument into a char array using the toCharArray() now I …

i have this code, i need to have [B]for()[/B] inside this boolean method, but it shows an error that return method is missing. how can i solve it? [CODE] public static boolean findPrevious(int dataIdx, int featIdx, String data, String[][] array){ for(int i=0; i<dataIdx; i++) { if(array[i][featIdx] == data) return false; …

I'm trying to write a method that draws a rectangle. If the user enters height = 4, and width = 8, and the print of character " * ", then the left rectangle is drawn on the left if the filled flag is true. If the flag is false, then …

The problem for my CMPT103 class is to write a program that takes a binary number as an integer and returns it as a decimal, i would be able to do this easily by taking it as a charecter array and dealing with each individual element but i dont understand …

Hi, I'm a student of Java, and my first homework assignment is more advanced than our reading. So...I'm lost. This question is: Q5: Write a program that reads a list of exam scores from the keyboard. Using A=90 to 100, B=80 to 89, C=70 to 79, D=60 to 69 and …

Hello, I'm a student working on my first hands-on assignment. One of the questions is this: Q4: Write a program that converts a user input temperature from degree Celsius to Fahrenheit or Fahrenheit to Celsius using: C = 5 (F -32)/9 or F = 9C/5 + 32 The user must …

3. Consider the Boolean expression F(A,B,C) = ABC + A'C' + A'B'. (a) Using the laws of Boolean algebra, derive an expression that uses only AND and NOT operators. (b) Using the laws of Boolean algebra, derive an expression that uses only OR and NOT operators. First, I am sorry …

Hello, I have a question about the code below [CODE] // Checks the vertex a if (this.a != ((Triangle)o).a) { return false; } [/CODE] So In a method called Triangle i declared an instance variable like this: [CODE] private java.awt.Point a [/CODE] What I think this code is doing is …

so i'm created a program that display the name and grade of students from a file, and also a boolean that checks to see if the names are in alphabetical order. The problem is that i've created a files that has a name in alphabetical order but it still returns …

[B]Edit: that was my mistake. i placed the codes in wrong line. i solved it by myself already. thanks for viewing.[/B]

The last time I was making a program, I wanted to input from user a boolean answer (to save space ;)) An input of 0/1 works good (0-false) and (1-true), but if the user inputs the boolean values as "true" and "false", it comes out to be an error. So, …

I have this method to see whether not the year is a leap year or not. heres the code i get the error missing return statement at the end. What can i do , i can't add return true or return false, becuase that screws it up. public boolean isLeapYear() …

YO, I would be EXTREMELY grateful if someone can help me out with some boolean method stuff. I have this assignment where we've been building up this bank account project thing, and at the moment I've been asked to put in a boolean method called inBalance that returns true if …