How do you use replaceAll in a string?

How do you use replaceAll in a string?

Java String replaceAll() example: replace word

1. public class ReplaceAllExample2{
2. public static void main(String args[]){
3. String s1=”My name is Khan. My name is Bob. My name is Sonoo.”;
4. String replaceString=s1.replaceAll(“is”,”was”);//replaces all occurrences of “is” to “was”
5. System.out.println(replaceString);
6. }}

What does replaceAll () do in Java?

The replaceAll() method replaces each substring that matches the regex of the string with the specified text.

What is the difference between Replace and replaceAll in Java?

The difference between replace() and replaceAll() method is that the replace() method replaces all the occurrences of old char with new char while replaceAll() method replaces all the occurrences of old string with the new string.

What is /\ s +/ G?

\s means “one space”, and \s+ means “one or more spaces”. But, because you’re using the /g flag (replace all occurrences) and replacing with the empty string, your two expressions have the same effect. Follow this answer to receive notifications.

How do you replace multiple characters in a string in Java?

Use the replace() method to replace multiple characters in a string, e.g. str. replace(/[. _-]/g, ‘ ‘) . The first parameter the method takes is a regular expression that can match multiple characters.

What is string replace method in Java?

– Signature. There are two types of replace () methods in Java String class. The second replace () method is added since JDK 1.5. – Parameters – Returns – Exception Throws. NullPointerException: if the replacement or target is equal to null. – Internal implementation. FileName: ReplaceExample1.java FileName: ReplaceExample2.java FileName: ReplaceExample3.java

How do you replace string in Java?

You can replace all occurrence of a single character, or a substring of a given String in Java using the replaceAll() method of java. lang. String class. This method also allows you to specify the target substring using the regular expression, which means you can use this to remove all white space from String. Read, more on it here.

How to replace all occurrences of a string in JavaScript?

Definition and Usage. The replace () method searches a string for a value or a regular expression. The replace () method returns a new string with the value (s) replaced.

How can I compare two strings in Java?

– Using equals () method (comparing the content) – Using == operator (comparing the object reference) – Using compareTo () method (comparing strings lexicographically)