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ERICA_JOS$ g++ -c -o JOS.o JOS.cpp
JOS.cpp: In function ‘void Draw(int, int, const char*)’:
JOS.cpp:79:6: error: redefinition of ‘void Draw(int, int, const char*)’
void Draw(int _x, int _y, const char * _c)
^~~~
JOS.h:36:6: note: ‘void Draw(int, int, const char*)’ previously defined here
JOS.cpp: In function ‘void Draw(int, int, char*)’:
JOS.cpp:86:6: error: redefinition of ‘void Draw(int, int, char*)’
void Draw(int _x, int _y, char * _c)
^~~~
JOS.h:43:6: note: ‘void Draw(int, int, char*)’ previously defined here
JOS.cpp: In function ‘void Draw(int, int, char)’:
JOS.cpp:93:6: error: redefinition of ‘void Draw(int, int, char)’
void Draw(int _x, int _y, char _c)
^~~~
JOS.h:50:6: note: ‘void Draw(int, int, char)’ previously defined here
JOS.cpp: In function ‘int Kbhit()’:
JOS.cpp:103:5: error: redefinition of ‘int Kbhit()’
int Kbhit()
^~~~~
JOS.h:60:5: note: ‘int Kbhit()’ previously defined here
JOS.cpp: In function ‘bool SetValidPos(int*, int*)’:
JOS.cpp:126:6: error: redefinition of ‘bool SetValidPos(int*, int*)’
bool SetValidPos(int * _x, int * _y)
^~~~~~~~~~~
JOS.h:20:6: note: ‘bool SetValidPos(int*, int*)’ previously defined here
extern bool SetValidPos(int * _x, int * _y);

How can solve it?