How to read a String and output the position of a character wanted by the user?

Question

here's my code so far and i'm kinda stuck
//Program Finding a position of a letter
class FindPosition
{
public static void main(String args[])
{
System.out.println("Type any sentence");
String sentence = Keyboard.readString();
System.out.println("Type a character to know it's position in the sentence.");
int sentencelimit = sentence.length();
}
}

Answer 1

The position of

char ch;



in

Strng str;



is given by



int pos = str.indexOf(ch):

Answer 2

The position is essentially the index. You need to go to the API for the String method and find the correct methods that will allow you to parse through the sentence and return the index.

Answer 3

Use indexOf

int pos=sentence.indexOf(sentencelimit);

if(pos==-1)

//not found

it will give index in terms of string indexes which starts from 0 till string.length()-1

so you may have to add 1 while printing

Answer 4

String.IndexOf(), String.ToCharArray(), String.StartsWith(). Take your pick.