C#•6mo ago

✅ GetLength vs .Length

   static void Main(string[] args)
   {
       int[,,] ints = new int[,,] {

          { {1,2,3},
            {4,5,6},
            {7,8,9} },
          {
           {10,10,11},
           {11,12,13},
           {12,13,14}
           
           }

          
       };
       for (int i = 0; i < ints.GetLength(0); i++)
       {
           for (int j = 0; j < ints.GetLength(1); j++)
           {
               for(int k = 0; k < ints.GetLength(2); k++)
               {
                   Console.WriteLine(ints[i, j, k]);
               }
           }
       }
       Console.ReadLine();
   }

   static void Main(string[] args)
   {
       int[,,] ints = new int[,,] {

          { {1,2,3},
            {4,5,6},
            {7,8,9} },
          {
           {10,10,11},
           {11,12,13},
           {12,13,14}
           
           }

          
       };
       for (int i = 0; i < ints.GetLength(0); i++)
       {
           for (int j = 0; j < ints.GetLength(1); j++)
           {
               for(int k = 0; k < ints.GetLength(2); k++)
               {
                   Console.WriteLine(ints[i, j, k]);
               }
           }
       }
       Console.ReadLine();
   }

the thing is .GetLength(0) doesn't need a -1 in the end while in .Length we do it like .Length-1

6 Replies

HtmlCompiler•6mo ago

wdym, if you did a for with .Length you wouldn't use < Length-1

Muhammad HammadOP•6mo ago

oh I feel I we use it? when we count length right? int lngt=sentence.length-1 like this but this is a different scenerio! I will look to clear my confusion sorry I am newbie I sometimes...

HtmlCompiler•6mo ago

both GetLength and Length return a "count", or a dimension, so it's the same principle anyway again if you were to have a for on an array using Length it would be used the same as GetLength for (int i = 0; i < ints.GetLength(0); i++) === for (int i = 0; i < array.Length; i++) i don't know if this answers your question

Muhammad HammadOP•6mo ago

ty man I had a wrong understanding before previosly when I worked on a words counter userInput.Length gives you the total number of characters in the userInput string. In C#, strings are zero-indexed, meaning the first character is at index 0, and the last character is at index userInput.Length - 1. So I just mixed this everywhere thinking it's needed at all place

HtmlCompiler•6mo ago

it happens all the times to mix 1-based index and 0-based index code, you probably have to come with a system to not forget this depending maybe on which you find the most intuitive

MODiX•6mo ago

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✅ GetLength vs .Length