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Friday, 29 June 2018

Apache Commons IO - IOCase

Apache Commons IO - IOCase


Enumeration of IO case sensitivity. Different Operating systems have different rules for case-sensitivity for file names. For example Windows is case-insensitive for file naming while Unix is case-sensitive. IOCase captures that difference, provides an enumeration to control how filename comparisons should be performed. It also provides methods to use the enumeration to perform comparisons.

Enum Declaration

Following is the declaration for org.apache.commons.io.IOCase Enum −
public enum IOCase
   extends Enum<IOCase> implements Serializable

Example of IOCase Enum

IOTester.java
import java.io.IOException;
import org.apache.commons.io.IOCase;

public class IOTester {
   public static void main(String[] args) {
      try {
         usingIOCase();
      } catch(IOException e) {
         System.out.println(e.getMessage());
      }
   }

   public static void usingIOCase() throws IOException {
      String text = "Welcome to TutorialsPoint. Simply Easy Learning.";
      String text1 = "WELCOME TO TUTORIALSPOINT. SIMPLY EASY LEARNING.";

      System.out.println("Ends with Learning (case sensitive): " +
      IOCase.SENSITIVE.checkEndsWith(text1, "Learning."));

      System.out.println("Ends with Learning (case insensitive): " +
      IOCase.INSENSITIVE.checkEndsWith(text1, "Learning."));

      System.out.println("Equality Check  (case sensitive): " +
      IOCase.SENSITIVE.checkEquals(text, text1));

      System.out.println("Equality Check  (case insensitive): " +
      IOCase.INSENSITIVE.checkEquals(text, text1));
   }
}

Output

It will print the following result.
Ends with Learning (case sensitive): false
Ends with Learning (case insensitive): true
Equality Check  (case sensitive): false
Equality Check  (case insensitive): true

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