   Problem with displaying text (C++)
  When I run this program it displays a bunch of random characters instead of all +'s.The source is below.#include <iostream>using namespace std;class object{    protected:   int x, y;   char graphic;    public:   const int get_x(){return x;};   const int get_y(){return y;};   const char get_graphic(){return graphic;};   void set_x(int new_x){x = new_x;};   void set_y(int new_y){y = new_y;};   void set_graphic(int new_graphic){graphic = new_graphic;};};/* There is some bug in hereclass agent:protected object{    protected:   int x, y;   char graphic;    public:   const int get_x(){return x;};   const int get_y(){return y;};   const char get_graphic(){return graphic;};   void set_x(int new_x){x = new_x;};   void set_y(int new_y){y = new_y;};   void set_graphic(int new_graphic){graphic = new_graphic;};};*/// ++ create a tile class that allows multiple objects in one tile/*    Theoretically I would create an object array or vector and a setting function that looks for an empty cell to jump into*/class tile{    protected:   int x, y;   object obj;    public:   const int get_x(){return x;};   const int get_y(){return y;};   const object get_obj(){return obj;};   const char get_contents(){return obj.get_graphic();};   void set_x(int new_x){x = new_x;};   void set_y(int new_y){y = new_y;};   void set_obj(object new_obj){obj = new_obj;};   void set_contents(char new_graphic){obj.set_graphic(new_graphic);};    };int main(){    cout << "Tiles..." << endl;    tile tiles[10][10];    cout << "initalized" << endl;    for(int i=0; i >= 10; i++){ //can be optimized   for(int j=0; j >= 10; j++){  cout << "populating" << endl;  tiles[j].set_x(i);  tiles[j].set_y(j);  tiles[j].set_contents('+');   }    }    cout << "Objects..." << endl;    object player;    cout << "Initializing player" << endl;    player.set_x(3);    player.set_y(3);    player.set_graphic('@');    cout << "Initializing npc" << endl;    object npc;    npc.set_x(1);    npc.set_y(1);    npc.set_graphic('N');    cout << "Initializing rock" << endl;    object rock;    rock.set_x(5);    rock.set_y(5);    rock.set_graphic('*');    cout << "Output.." << endl;    for(int i=0; i <= 10; i++){   for(int j=0; j <= 10; j++){  cout << tiles[j].get_contents();  cout << " ";   }   cout << "\n";    }} 
  for(int i=0; i >= 10; i++){ //can be optimizedfor(int j=0; j >= 10; j++){These loops don't run,it should be i<10,j<10.   ;  Thanks. That was the problem.   ;  Also,for(int i=0; i <= 10; i++){for(int j=0; j <= 10; j++){cout << tiles[j].get_contents();cout << " ";}Your tiles array is 10x10 the first elements is 0,0 and the last is 9,9 not 10,10.Again the bounds should be i<10 and j<10.Accesing out of the bounds will cause strange behaviour and crashes.;  I realized that when it was outputting extra text.It's a good thing this matter was addressed before I started writing to the arrays. Thanks again.   