Java Program to Perform String Matching Using String Library

This is a java program to perform search using string library.

Here is the source code of the Java Program to Perform String Matching Using String Library. The Java program is successfully compiled and run on a Windows system. The program output is also shown below.

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package com.sanfoundry.setandstring;
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import java.util.Scanner;
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public class StringSearchUsingStrLib
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{
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    public static void main(String[] args)

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    {
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        Scanner sc = new Scanner(System.in);

        System.out.println("Enter the main string: ");

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        String text = sc.nextLine();
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        System.out.println("Enter the pattern string: ");

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        String pattern = sc.nextLine();
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        for (int i = 0; i <= (text.length() - pattern.length()); i++)

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        {
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            if (text.substring(i, (i + pattern.length())).equalsIgnoreCase(

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                    pattern))
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            {
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                System.out.println(pattern

                        + " is substring of main string, match found at: "

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                        + ++i);
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            }
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        }
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        sc.close();
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    }
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}
```

Output:

$ javac StringSearchUsingStrLib.java
$ java StringSearchUsingStrLib
 
Enter the main string: 
Java Program to Perform String Matching Using String Library
Enter the pattern string: 
String
String is substring of main string, match found at: 25
String is substring of main string, match found at: 47

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