Introduction to Java StringBuffer class.
Section 12.1: String Buffer class
Key Points:
- used to created mutable (modifiable) string.
- Mutable: Which can be changed.
- is thread-safe i.e. multiple threads cannot access it simultaneously.
Methods:
- public synchronized StringBuffer append(String s)
- public synchronized StringBuffer insert(int offset, String s)
- public synchronized StringBuffer replace(int startIndex, int endIndex, String str)
- public synchronized StringBuffer delete(int startIndex, int endIndex)
- public synchronized StringBuffer reverse() public int capacity()
- public void ensureCapacity(int minimumCapacity) public char charAt(int index)
- public int length()
- public String substring(int beginIndex)
- public String substring(int beginIndex, int endIndex)
Example Showing difference between String and String Buffer implementation:
public static void main(String args[])
{
String str = “study”;
str.concat(“tonight”);
System.out.println(str); // Output: study
StringBuffer strB = new StringBuffer(“study”);
strB.append(“tonight”);
System.out.println(strB); // Output: studytonight
}
} class Test {
About us and this blog
We are a digital marketing company with a focus on helping our customers achieve great results across several key areas.
Request a free quote
We offer professional SEO services that help websites increase their organic search score drastically in order to compete for the highest rankings even when it comes to highly competitive keywords.
Subscribe to our newsletter!
More from our blog
See all posts
When you use the yield keyword in a statement, you indicate that…
Section119.1:Throwingexceptioninalockstatement Followingcodewillreleasethelock.Therewillbenoproblem.Behindthesceneslockstatementworksastryfinally lock(locker) { thrownewException(); } MorecanbeseenintheC#5.0Specification: A lockstatement of the form…
Section 118.1: Controlling access to a variable in a Parallel.For loop usingSystem;…
Section117.1:Parallel.ForEach AnexamplethatusesParallel.ForEachlooptopingagivenarrayofwebsiteurls. staticvoidMain() { string[]urls= { "www.stackoverflow.com", "www.google.net", "www.facebook.com", "www.twitter.com" }; System.Threading.Tasks.Parallel.ForEach(urls,url=>…
Section116.1:UsingaBackgroundWorkertocompleteatask ThefollowingexampledemonstratestheuseofaBackgroundWorkertoupdateaWinFormsProgressBar.The backgroundWorker will update the value of the progress bar without…
Section115.1:Pseudocodeforasync/awaitkeywords Considerasimpleasynchronousmethod: asyncTaskFoo() { Bar(); awaitBaz(); Qux(); } Simplifying,wecansaythatthiscodeactuallymeansthefollowing: TaskFoo() { Bar();…
In C#, a method declared asyncwon't block within a synchronous process, in…
Section113.1:ASP.NETConfigureAwaitWhen ASP.NET handles a request, a thread is assigned from the thread…
No Comments
Recent Posts
- Chapter120:YieldKeyword 20/05/2024
- Chapter119:LockStatement 19/05/2024
- Chapter118:Makingavariablethreadsafe 18/05/2024