Java programming Exercises: Remove the specific letters from a string and return the new string
Java Regular Expression: Exercise-19 with Solution
Write a Java program to remove the specific letters from a string and return the new string. Specific letters: "p", "q", or "r".
If the given string does not contain "p", "q", or "r", return “Not found.”
Sample Solution-1:
Java Code:
public class test {
public static void main(String[] args) {
String text = "The quick brown fox jumps over the lazy dog.";
System.out.println("Original Text: "+text);
System.out.println("Remove p,q,r characters from the said string(if present): "+validate(text));
text = "Java Exercises.";
System.out.println("\nOriginal Text: "+text);
System.out.println("Remove p,q,r characters from the said string(if present): "+validate(text));
text = "Java linkedlist.";
System.out.println("\nOriginal Text: "+text);
System.out.println("Remove p,q,r characters from the said string(if present): "+validate(text));
}
public static String validate(String text) {
String s = text.replaceAll("(?i)[pqr]", "");
return text.equals(s) ? "Not found." : s;
}
}
Sample Output:
Original Text: The quick brown fox jumps over the lazy dog. Remove p,q,r characters from the said string(if present): The uick bown fox jums ove the lazy dog. Original Text: Java Exercises. Remove p,q,r characters from the said string(if present): Java Execises. Original Text: Java linkedlist. Remove p,q,r characters from the said string(if present): Not found.
Pictorial Presentation:
Flowchart :
Sample Solution-2:
Java Code:
public class test {
public static void main(String[] args) {
String text = "The quick brown fox jumps over the lazy dog.";
System.out.println("Original Text: "+text);
System.out.println("Remove p,q,r characters from the said string(if present): "+validate(text));
text = "Java Exercises.";
System.out.println("\nOriginal Text: "+text);
System.out.println("Remove p,q,r characters from the said string(if present): "+validate(text));
text = "Java linkedlist.";
System.out.println("\nOriginal Text: "+text);
System.out.println("Remove p,q,r characters from the said string(if present): "+validate(text));
}
public static String validate(String text) {
return text.matches(".*[pqrPQR].*") ? text.replaceAll("[pqrPQR]","") : "Not found.";
}
}
Sample Output:
Original Text: The quick brown fox jumps over the lazy dog. Remove p,q,r characters from the said string(if present): The uick bown fox jums ove the lazy dog. Original Text: Java Exercises. Remove p,q,r characters from the said string(if present): Java Execises. Original Text: Java linkedlist. Remove p,q,r characters from the said string(if present): Not found.
Flowchart :
Java Code Editor:
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