﻿ Java exercises: Find whether a region in the current string matches a region in another string - w3resource

# Java String Exercises: Find whether a region in the current string matches a region in another string

## Java String : Exercise-23 with Solution

Write a Java program to find whether a region in the current string matches a region in another string.

Sample Solution:

Java Code:

``````public class Exercise23 {

public static void main(String[] args)
{
//String str1 = "Red Green Orange Yellow";
//String str2 = "Yellow Orange Green Red";

String str1 = "Shanghai Houston Colorado Alexandria";
String str2 = "Alexandria Colorado Houston Shanghai";

// Determine whether characters 0 through 7 in str1
// match characters 28 through 35 in str2.
boolean match1 = str1.regionMatches(0, str2, 28, 8);

// Determine whether characters 9 through 15 in str1
// match characters 9 through 15 in str2.
boolean match2 = str1.regionMatches(9, str2, 9, 8);

// Display the results of the regionMatches method calls.
System.out.println("str1[0 - 7] == str2[28 - 35]? " + match1);
System.out.println("str1[9 - 15] == str2[9 - 15]? " + match2);
}
}
```
```

Sample Output:

```str1[0 - 7] == str2[28 - 35]? true
str1[9 - 15] == str2[9 - 15]? false
```

Java Code Editor:

```public class Exercise23 {

public static void main(String[] args)
{
//String str1 = "Red Green Orange Yellow";
//String str2 = "Yellow Orange Green Red";

String str1 = "Shanghai Houston Colorado Alexandria";
String str2 = "Alexandria Colorado Houston Shanghai";

// Determine whether characters 0 through 7 in str1
// match characters 28 through 35 in str2.
boolean match1 = str1.regionMatches(0, str2, 28, 8);

// Determine whether characters 9 through 15 in str1
// match characters 9 through 15 in str2.
boolean match2 = str1.regionMatches(9, str2, 9, 8);

// Display the results of the regionMatches method calls.
System.out.println("str1[0 - 7] == str2[28 - 35]? " + match1);
System.out.println("str1[9 - 15] == str2[9 - 15]? " + match2);
}
}```

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