Friday 13 April 2018

Search String using index Of Example



  1. /*
      Java Search String using indexOf Example
      This example shows how we can search a word within a String object using
      indexOf method.
    */

    public class SearchStringExample  
    {

      public static void main(String[] args)  
    {
        //declare a String object
        String strOrig = “Hello world Hello World”;

        /*
          To search a particular word in a given string use indexOf method.
          indexOf method. It returns a position index of a word within the string
          if found. Otherwise it returns -1.
        */

        int intIndex = strOrig.indexOf(“Hello”);

        if(intIndex == 1){
          System.out.println(“Hello not found”);
        }else{
          System.out.println(“Found Hello at index “ + intIndex);
        }

        /*
          we can also search a word after particular position using
          indexOf(String word, int position) method.  
        */

        int positionIndex = strOrig.indexOf(“Hello”,11);
        System.out.println(“Index of Hello after 11 is “ + positionIndex);

        /*
          Use lastIndexOf method to search a last occurrence of a word within string.
        */
        int lastIndex = strOrig.lastIndexOf(“Hello”);
        System.out.println(“Last occurrence of Hello is at index “ + lastIndex);

      }
    }

    /*
    Output of the program would be :
    Found Hello at index 0
    Index of Hello after 11 is 12
    Last occurrence of Hello is at index 12
    */

0 Comments:

Post a Comment

Popular Posts

Categories

AI (27) Android (24) AngularJS (1) Assembly Language (2) aws (17) Azure (7) BI (10) book (4) Books (112) C (77) C# (12) C++ (82) Course (60) Coursera (176) coursewra (1) Cybersecurity (22) data management (11) Data Science (85) Data Strucures (6) Deep Learning (9) Django (6) Downloads (3) edx (2) Engineering (14) Excel (13) Factorial (1) Finance (5) flutter (1) FPL (17) Google (18) Hadoop (3) HTML&CSS (46) IBM (25) IoT (1) IS (25) Java (92) Leet Code (4) Machine Learning (43) Meta (18) MICHIGAN (4) microsoft (3) Pandas (3) PHP (20) Projects (29) Python (719) Python Coding Challenge (155) Questions (2) R (70) React (6) Scripting (1) security (3) Selenium Webdriver (2) Software (17) SQL (40) UX Research (1) web application (8)

Followers

Person climbing a staircase. Learn Data Science from Scratch: online program with 21 courses