What is lastIndexOf C#?

LastIndexOf(String, Int32, Int32) Reports the zero-based index position of the last occurrence of a specified string within this instance. The search starts at a specified character position and proceeds backward toward the beginning of the string for a specified number of character positions.

How do I get lastIndexOf in C#?

The IndexOf() method returns the index number of the first matched character whereas the LastIndexOf() method returns index number of the last matched character.

using System;
public class StringExample.
{
public static void Main(string[] args)
{
string s1 = “Hello C#”;
int first = s1.IndexOf(‘l’);

What is lastIndexOf in C# with example?

LastIndexOf() Method in C# LastIndexOf() method in C# is used to search for the specified object and returns the index of the last occurrence within the entire one-dimensional Array.

What is the difference between IndexOf and lastIndexOf in C#?

indexOf() method returns the position of the first occurrence of a specified value in a string. string. lastIndexOf() method returns the position of the last occurrence of a specified value in a string.

How do I use lastIndexOf?

The lastIndexOf() method searches the string from the end to the beginning. The lastIndexOf() method returns the index from the beginning (position 0). The lastIndexOf() method returns -1 if the value is not found. The lastIndexOf() method is case sensitive.

How does lastIndexOf work in Java?

lastIndexOf(String str) : This method accepts a String as an argument, if the string argument occurs one or more times as a substring within this object, then it returns the index of the first character of the last such substring is returned. If it does not occur as a substring, -1 is returned.

What is the return value for both indexOf () and lastIndexOf () method when the substring is not found in a given string?

The Java String class lastIndexOf() method returns the last index of the given character value or substring. If it is not found, it returns -1. The index counter starts from zero.

How do I remove the last character of a string?

There are four ways to remove the last character from a string:

Using StringBuffer. deleteCahrAt() Class.
Using String. substring() Method.
Using StringUtils. chop() Method.
Using Regular Expression.

What is the difference between substring and Substr?

The difference between substring() and substr() The arguments of substring() represent the starting and ending indexes, while the arguments of substr() represent the starting index and the number of characters to include in the returned string.

What is the purpose of lastIndexOf ()? Explain with an example?

lastIndexOf(String str, int beg) : This method returns the index within this string of the last occurrence of the specified substring, searching backward starting at the specified index.

What is the use of lastIndexOf?

The lastIndexOf() method returns the index within the calling String object of the last occurrence of the specified value, searching backwards from fromIndex . Returns -1 if the value is not found.

How do I use lastIndexOf method to show one example?

Java String lastIndexOf() method example

public class LastIndexOfExample{
public static void main(String args[]){
String s1=”this is index of example”;//there are 2 ‘s’ characters in this sentence.
int index1=s1.lastIndexOf(‘s’);//returns last index of ‘s’ char value.
System.out.println(index1);//6.
}}

What is lastIndexOf C#?