Difference Between replace and replaceAll in Java

The replace method of the String class accepts two characters and it replaces all the occurrences of oldChar in this string with newChar.

Example

import java.io.*;
public class Test {
   public static void main(String args[]) {
      String Str = new String("Welcome to Tutorialspoint.com");
      System.out.print("Return Value :" );
      System.out.println(Str.replace('o', 'T'));
      System.out.print("Return Value :" );
      System.out.println(Str.replace('l', 'D'));
   }
}

Output

Return Value :WelcTme tT TutTrialspTint.cTm
Return Value :WeDcome to TutoriaDspoint.com

The replaceAll() method replaces each substring of this string that matches the given regular expression with the given replacement.

Example

import java.io.*;
public class Test {
   public static void main(String args[]) {
      String Str = new String("Welcome to Tutorialspoint.com");
      System.out.print("Return Value :" );
      System.out.println(Str.replaceAll("(.*)Tutorials(.*)", "AMROOD"));
   }
}

Output

Return Value :AMROOD