This example describes how replace method of java String class can be used to replace character or substring by new one.
public class StringReplace{
public static void main(String args[]){
String str = "Hello World";
System.out.println(str.replace('H', 'W'));
System.out.println(str.replaceFirst("He", "Wa"));
System.out.println(str.replaceAll("He", "Ha"));
}
}
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Result:
The above code sample will produce the following result.
Wello World
Wallo World
Hallo World
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Source code: