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Replace one string with another string with Java Regular Expressions
To replace one string with another string using Java Regular Expressions, we need to use the replaceAll() method. The replaceAll() method returns a String replacing all the character sequence matching the regular expression and String after replacement.
Declaration − The java.lang.String.replaceAll() method is declared as follows −
public String replaceAll(String regex, String replaced)
Let us see a program to replace one string with another string using Java Regular Expressions −
Example
public class Example {
public static void main( String args[] ) {
String str = new String("Good Harry Good");
System.out.println( "Initial String : "+ str);
// replacing "Good" with "Bad"
str = str.replaceAll( "Good" , "Bad" );
System.out.println( "The String after substitution : "+str );
}
}Output
Initial String : Good Harry Good The String after substitution : Bad Harry Bad
Updated on 25-Jun-2020 15:00:57
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