andruluchko

Hello, I try to rename file or directory using JFileChooser() and JButton(). But it gives me a NullPointer exeption. I have FileChooser, Button and TextField where I write new name for my file or directory. Can you say where I go wrong and how to solve this problem. // button …

Hello. I have to print information (Full name. date of birdth, count of children) using output operator overloading. But i get two errors: "no instance of constructor matches the argument list" and "cannot convert from int to int". I have to use public and private modificators too. Can you show …

Hello, I have to implement an overloading insertion and extraction. My fields are char, char and float. I met some problems with data types. How can I use overloading insertion/extraction with strings? Can You state the mistakes in my code? Thanks // laba8pop.cpp : Defines the entry point for the …

To tell the truth. this program isn't mine. I got this from book "Robert Lafore. Data structures and algorithms in java". There are all written in detail and comments how to implement a 2-3-4 tree, but I need to implement a 2-3 tree. It is not present in the book. …

this is my program for list implementation in C++. And I want to print the first element in it. I write element until I reach 0 Can You show me the way to do it. Thanks #include "stdafx.h" #include "iostream" using namespace std; struct Node { int data; Node *next; …

I have to make a model of this arithmetical expression using a binary tree. Expression is a+b*c-b http://piccy.info/view3/7176082/d09578d27ea7057c572de3f108a9301f/ Here's the model of my tree in Java enum NodeType { NUMBER, OPERATOR } // Possible kinds of node. class ExpNode { // A node in an expression tree. NodeType kind; // …

Hello. I have a following verse: >A swarm of bees in May >Is worth a load hey; >A swarm of bees in June >Is worth a silver spoon; >A swarm of bees in July >Is hot a worth a fly. And I have to modify this text so that all …