- Java.lang Package classes
- Java.lang - Home
- Java.lang - Boolean
- Java.lang - Byte
- Java.lang - Character
- Java.lang - Character.Subset
- Java.lang - Character.UnicodeBlock
- Java.lang - Class
- Java.lang - ClassLoader
- Java.lang - Compiler
- Java.lang - Double
- Java.lang - Enum
- Java.lang - Float
- Java.lang - InheritableThreadLocal
- Java.lang - Integer
- Java.lang - Long
- Java.lang - Math
- Java.lang - Number
- Java.lang - Object
- Java.lang - Package
- Java.lang - Process
- Java.lang - ProcessBuilder
- Java.lang - Runtime
- Java.lang - RuntimePermission
- Java.lang - SecurityManager
- Java.lang - Short
- Java.lang - StackTraceElement
- Java.lang - StrictMath
- Java.lang - String
- Java.lang - StringBuffer
- Java.lang - StringBuilder
- Java.lang - System
- Java.lang - Thread
- Java.lang - ThreadGroup
- Java.lang - ThreadLocal
- Java.lang - Throwable
- Java.lang - Void
- Java.lang Package extras
- Java.lang - Interfaces
- Java.lang - Errors
- Java.lang - Exceptions
- Java.lang Package Useful Resources
- Java.lang - Useful Resources
- Java.lang - Discussion
Java.lang.StringBuilder.append() Method
Description
The java.lang.StringBuilder.append(CharSequence s) method appends the specified character sequence.
Declaration
Following is the declaration for java.lang.StringBuilder.append() method
public StringBuilder append(CharSequence s)
Parameters
s − This is the character sequence to append. If s is null, then the four characters "null" are appended.
Return Value
This method returns a reference to this object.
Exception
IndexOutOfBoundsException − this is the exception thrown.
Example
The following example shows the usage of java.lang.StringBuilder.append() method.
package com.tutorialspoint; import java.lang.*; public class StringBuilderDemo { public static void main(String[] args) { StringBuilder str = new StringBuilder("amrood "); System.out.println("string = " + str); CharSequence cSeq = "admin"; // appends the CharSequence str.append(cSeq); // print the StringBuilder after appending System.out.println("After append = " + str); } }
Let us compile and run the above program, this will produce the following result −
string = amrood After append = amrood admin
java_lang_stringbuilder.htm
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