while(boolean) 
 { 
     does whatver is here while the boolean isnt false 
 } 
  
 for(int = intName; expression that tells the loop when to stop, like i > 0; what you want int i to do in each iteration of this loop, like i= i+1) 
 { 
     repeats whats in here till that expression is false 
 } 
  
 if(boolean) 
 { 
 do this 
 }