How do you replace another character in Java?

The Java string replace() method will replace a character or substring with another character or string. The syntax for the replace() method is string_name. replace(old_string, new_string) with old_string being the substring you’d like to replace and new_string being the substring that will take its place.

How do you replace a character in a file in Java?

Split the obtained string int o array of String using the split() method. Traverse through the obtained array. If any element in it matches to the required word, append it to the String buffer. Replace the characters in all the remaining words with ‘#’ and append them to the StringBuffer object.

How do you replace a word with another in Java?

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. }}
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What is replace method in Java?

Java String replace() Method

The replace() method searches a string for a specified character, and returns a new string where the specified character(s) are replaced.

How do I replace a string with another string in Java?

The Java string replace() method will replace a character or substring with another character or string. The syntax for the replace() method is string_name. replace(old_string, new_string) with old_string being the substring you’d like to replace and new_string being the substring that will take its place.

What replaces one character with another character substitution?

Replace() method replaces a character or a string with another character or string in a string. In C#, Strings are immutable.

How To Replace Characters In A C# String.

Method Description
Replace(String, String) Returns a new string in which all occurrences of a specified string in the current instance are replaced with another specified string.

How do I replace a character in a String in Java?

9 Answers. String are immutable in Java. You can’t change them. You need to create a new string with the character replaced.

How do you replace a character in a String in Java without using replace method?

Just use String. replace . Or use a Matcher and a regular expression (either direct replacement or rebuild with appendReplacement/appendTail). Or use other one-off indexOf/substring/split and build the result manually.

How do I replace a character in a string?

Java String replace(char old, char new) method example

  1. public class ReplaceExample1{
  2. public static void main(String args[]){
  3. String s1=”javatpoint is a very good website”;
  4. String replaceString=s1.replace(‘a’,’e’);//replaces all occurrences of ‘a’ to ‘e’
  5. System.out.println(replaceString);
  6. }}

How do you replace a character in a string with spaces in Java?

Program:

  1. public class ReplaceSpace.
  2. {
  3. public static void main(String[] args) {
  4. String string = “Once in a blue moon”;
  5. char ch = ‘-‘;
  6. //Replace space with specific character ch.
  7. string = string. replace(‘ ‘, ch);
  8. System. out. println(“String after replacing spaces with given character: “);
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How do you replace the first character of a string in Java?

To replace the first occurrence of a character in Java, use the replaceFirst() method.

How do you replace multiple special characters in Java?

Replace Multiple Characters in a String Using replaceAll() in Java. replaceAll() is used when we want to replace all the specified characters’ occurrences. We can use regular expressions to specify the character that we want to be replaced.

How do you replace double quotes in Java?

Add double quotes to String in java

If you want to add double quotes(“) to String, then you can use String’s replace() method to replace double quote(“) with double quote preceded by backslash(“).