how to perform character concatenation in java [duplicate]

by

The best practice to deal with string concatenations is to use StringBuilder as shown below:

            String st="java is awesome";
            char[] ch=st.toCharArray();
            StringBuilder builder = new StringBuilder();
            for(int i=0;i<ch.length;i++) {
                if(ch[i] != 'a')
                    builder.append(ch[i]);
                else if(ch[i]=='a')
                    builder.append(ch[i]).append('#');
            }
            System.out.println(builder.toString());

More Related Contents:

  1. non resizable window border and positioning
  2. How can I send large messages with Kafka (over 15MB)?
  3. Why do people still use primitive types in Java?
  4. Call c function from Java
  5. How to create a sub array from another array in Java?
  6. How to call a method with a separate thread in Java?
  7. Increasing the JVM maximum heap size for memory intensive applications
  8. Persistent HttpURLConnection in Java
  9. How can I tell jackson to ignore a property for which I don’t have control over the source code?
  10. Spring configure @ResponseBody JSON format
  11. How to set JAVA_HOME in Mac permanently?
  12. Unable to obtain ZonedDateTime from TemporalAccessor using DateTimeFormatter and ZonedDateTime in Java 8
  13. Understanding Scanner’s nextLine(), next(), and nextInt() methods
  14. Spring – Injecting a dependency into a ServletContextListener
  15. Is the ternary operator faster than an “if” condition in Java [duplicate]
  16. Autowire reference beans into list by type
  17. Why Java Calendar set(int year, int month, int date) not returning correct date? [duplicate]
  18. Why does this java 8 stream operation evaluate to Object instead of List or just List?
  19. How can a Thread return a value after finishing its job?
  20. How to send a SOAP request using WebServiceTemplate?
  21. Java: how to convert HashMap to array
  22. How to use POMs as a dependency in Maven?
  23. Change database schema during runtime based on logged in user
  24. Why is Java’s division broken?
  25. Catching nullpointerexception in Java [closed]
  26. What is the default maximum heap size for Sun’s JVM from Java SE 6?
  27. How can I print a custom paper size (cheques 8″ x 4″)?
  28. Jar to Mac OSX App Bundle with app bundler
  29. Java: is there no AtomicFloat or AtomicDouble?
  30. how to increase java heap memory permanently?

Leave a Comment