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Java programming Exercises: Remove all the vowels of a given string and return the new string

Java Regular Expression: Exercise-15 with Solution

Write a Java program to remove all the vowels of a given string. Return the new string.

Here we consider a, e, i, o, u are vowels (not y).

Sample Solution-1:

Java Code:

public class test {
 
   public static void main(String[] args) {	   
	    String text = "LOWERED";
		System.out.println("Original string: "+text);
		System.out.println("After removing vowels: New string: "+validate(text));
		text = "Java";
		System.out.println("\nOriginal string: "+text);
		System.out.println("After removing vowels: New string: "+validate(text));
		text = "MID-CENTRALIZED";
		System.out.println("\nOriginal string: "+text);
		System.out.println("After removing vowels: New string: "+validate(text));
		text = "C++";
		System.out.println("\nOriginal string: "+text);
		System.out.println("After removing vowels: New string: "+validate(text));
        }

   public static String validate(String text) {
	   String result = text.replaceAll("(?i)[aeiou]", "");
	   return result;
  }
}

Sample Output:

Original string: LOWERED
After removing vowels: New string: LWRD

Original string: Java
After removing vowels: New string: Jv

Original string: MID-CENTRALIZED
After removing vowels: New string: MD-CNTRLZD

Original string: C++
After removing vowels: New string: C++

Pictorial Presentation:

Java Regular Expression: Remove all the vowels of a given string and return the new string.

Flowchart :

Flowchart: Remove all the vowels of a given string and return the new string.

Sample Solution-2:

Java Code:

public class test {
 
   public static void main(String[] args) {	   
	    String text = "LOWERED";
		System.out.println("Original string: "+text);
		System.out.println("After removing vowels: New string: "+validate(text));
		text = "Java";
		System.out.println("\nOriginal string: "+text);
		System.out.println("After removing vowels: New string: "+validate(text));
		text = "MID-CENTRALIZED";
		System.out.println("\nOriginal string: "+text);
		System.out.println("After removing vowels: New string: "+validate(text));
		text = "C++";
		System.out.println("\nOriginal string: "+text);
		System.out.println("After removing vowels: New string: "+validate(text));
        }

   public static String validate(String text) {
	   String result = text.replaceAll("[aeiouAEIOU]","");
	   return result;
  }
}

Sample Output:

Original string: LOWERED
After removing vowels: New string: LWRD

Original string: Java
After removing vowels: New string: Jv

Original string: MID-CENTRALIZED
After removing vowels: New string: MD-CNTRLZD

Original string: C++
After removing vowels: New string: C++

Flowchart :

Flowchart: Remove all the vowels of a given string and return the new string.

Java Code Editor:

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Previous: Count number of vowels in a given string using regular expression.

Next: Replace all the vowels in a given string with a specified character.

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Java: Tips of the Day

Split Java String by New Line

String lines[] = string.split("\\r?\\n");

There's only really two newlines (UNIX and Windows) that you need to worry about.

Ref: https://bit.ly/3dHk7ip