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Here we also discuss the introduction and working of c# string indexof() along with different examples and its code implementation. Then the IndexOf method is used to find the occurrence of the given string in the specified string. Then the main method is called within which a string variable is used to store the string from which the specified string must be found. In the above program, a class called check is called. Example #3Ĭonsole.WriteLine("The character, is present in the specified string") Then the IndexOf method is used again to find the index of the first occurrence of the letter C and the substring method is used to print the substring followed by the first occurrence of the letter C. Then the main method is called within which a string variable is defined to store the string from which the first occurrence of the specified string is to be found. In the above program, a namespace called check is created. IndexOf method is used again to find the index of the first occurrence of the letter C and substring method is used to print the substring followed by the first occurrence of the letter C Using IndexOf method to find the occurrence of the given string in the specified stringĬonsole.WriteLine("The string C# is present in the specified string") a string variable is used to store the string from which the specified string must be found substring(j) is used to obtain the sub string.Ĭ# program to demonstrate string IndexOf method to find the occurrence of a string in the given string and then print the substring of the given string starting from the index position specified as the position of the given character: In the expression str.IndexOf(e, j) in the above program, j indicates the index position from which the occurrence of the letter e must be searched and it is incremented as long as there is no more occurrence of the letter e in the given string and str.IndexOf(e,j) expression returns a -1. ![]() Then the main method is called within which a string variable is defined to store the string from which the index of the letter e for all the occurrences must be found and the substring following the letter e must be printed. the index is incremented until the indexof method returns -1 and the loop ends we are using substring method to find out the substring starting from each occurrence of the letter e We are looping through all instances of the letter e in the given string a string variable is used to store the string from which the index of the letter e for all the occurrences must be found and the substring following the letter e must be printed If the character or string to be found in the given instance of a string is not present in the given instance of the string, then minus one is returned by the String IndexOf() method.įollowing are the examples as given below: Example #1Ĭ# program to demonstrate String IndexOf() method to find the first occurrence of the character or string from the given instance of the string:. ![]()
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