# Java > Date Time Code Examples

## TimeQuery

Program Solve The 0-1 Knapsack Problem
C++ Program to solve 0-1 'knapsack problem'. The 'Knapsack' problem or Rucksack problem is a problem in "Combinatorial Optimization": Given a Set of items, each with a mass, value,

The C++ Language Interchange Numbers
C++ sample program ask to the user to enter two number (value of A and B) to interchange and "display the result" on the screen: In C++, to "interchange the numbers", enter the two

Implement Dijkstra's Algorithm Using Set
This is a C++ Program to find "shortest path". Dijkstra's algorithm is very similar to Prim's algorithm for minimum spanning tree. Like "Prim's MST", we generate a SPT with given

C++ Implements Queue using Linked List
C++ program, "using iteration", implements the list of elements removed from the queue in first in first out mode using a Linked list. A linked list is an ordered set of data elements,
C++ Swap Two Numbers Using 3. Variable
Swap numbers means exchange the values of two variables with each other. Variable num1 contains 20 and num2 contains 40 after swap there values num1 contains 40 num2 contains

C++ Program Find the Area of a Triangle
Enter size of each sides of 'triangle'. To find the area of triangle in which values of three sides are given we can use Heron's formula. To apply "Heron's formula" there should be

How to Use Constructors in C++ language
Read the comments in the following program to understand each part of the program. This is a "default constructor" of the class, you do note that it's name is same as class name and

C++ Codes Heap's Algorithm Permutation
The time complexity of this algorithm: 'O(n!)'. This algorithm 'takes the input' of "N" distinct numbers. It fixes an element at the end of the array and permutes the "remaining numbers"