Open In App

C# | Finding the index of last element in the array

Last Updated : 01 Feb, 2019
Summarize
Comments
Improve
Suggest changes
Share
Like Article
Like
Report
GetUpperBound() Method is used to find the index of the last element of the specified dimension in the array. Syntax:
public int GetUpperBound (int dimension);
Here, dimension is a zero-based dimension of the array whose upper bound needs to be determined. Return Value:The return type of this method is System.Int32. This method returns the index of the last element of the specified dimension in the array Or -1 if the specified dimension is empty. Exception: This method will give IndexOutOfRangeException if the value of dimension is less than zero, or equal or greater than Rank. Note: GetUpperBound(0) returns the last index in the first dimension of the array, and GetUpperBound(Rank - 1) returns the last index of the last dimension of the array. This method is an O(1) operation. Below programs illustrate the use of GetUpperBound() Method: Example 1: CSharp
// C# program to illustrate the GetUpperBound(Int32)
// method in 1-D array
using System;

public class GFG {
    
    // Main method
    static public void Main()
    {

        // 1-D Array
        int[] value = {1, 2, 3, 4, 5, 6, 7};

        // Get the index of the last element
        // in the given Array by using 
        // GetUpperBound(Int32) method
        int myvalue = value.GetUpperBound(0);
        
        Console.WriteLine("Index: {0}", myvalue);
    }
}
Output:
Index: 6
Example 2: CSharp
// C# program to find last index 
// value and rank of 2-D array
using System;

public class GFG {
    
    // Main method
    static public void Main()
    {

        // 2-D char Array
        char[, ] value = { { 'a', 'b' }, { 'c', 'd' }, 
                           { 'e', 'f' }, { 'g', 'h' },
                                       { 'i', 'j' } };

        // Get the index of the last element
        // and the rank of the given Array
        int myvalue = value.GetUpperBound(0);
        Console.WriteLine("Dimension: {0}", value.Rank);
        Console.WriteLine("Index: {0}", myvalue);
    }
}
Output:
Dimension: 2
Index: 4
Reference: https://docs.microsoft.com/en-us/dotnet/api/system.array.getupperbound?view=netcore-2.1

Next Article
Article Tags :

Similar Reads