i tried both of the codes, here is exactly what i typed into the cmd and the reply thing i got for the first one: 
  
(i typed this in    "<Java executable in install directory>" 
(reply:)    '">Java executable in install directory>"' is not recognised as a internal or external command, operable program or batch file. 
  
( i typed this in)   "<forge installer in its directory>" 
(Reply)   '"<forge installer in its directory>"' is not recognised as a internal or external command, operable program or batch file. 
  
Second Codes: 
  
( i typed this in ) "C:\Program Files\Java\jre7\bin\Java.exe" 
(reply)  The system cannot find the path specified. 
  
( i typed this in ) "C:\Users\<Jasmines Dell>\Downloads\forge-1.7.10-10.13.0.1197-installer-win" 
( reply )  The system cannot find the path specified 
  
  
i also tried some other commands but none worked. though now i have a feeling that i didn't download the right forge thing....... here's the link to the website where i downloaded forge:   http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.7.2-10.12.2.1147/forge-1.7.2-10.12.2.1147-installer-win.exe 
  
Thanks