• August 28, 2014
  • Core Java
  • Comments Off on capacity() StringBuilder method in java

capacity() StringBuilder method in java

capacity(): returns the current capacity of string builder. Capacity refers to the amount of available storage.

Syntax: public int capacity().

Example:

StringBuilderCapacityExample.java

/**
 * This program is used to show the use of capacity() method.
 * @author javawithease
 */
class TestStringBuilder{
	StringBuilder sb = new StringBuilder();
 
	/**
	 * This method is used to show the use of capacity() method.
	 * @author javawithease
	 */
	public void capacityTest(){
		//default capacity.
		System.out.println(sb.capacity());
 
		sb.append("Hello ");
		//current capacity 16.
		System.out.println(sb.capacity());
 
		sb.append("www.javawithease.com");
		//current capacity (16*2)+2=34 i.e (oldcapacity*2)+2.  
		System.out.println(sb.capacity());
	}
}
 
public class StringBuilderCapacityExample {
	public static void main(String args[]){
		//creating TestStringBuilder object
		TestStringBuilder obj = new TestStringBuilder();
 
		//method call
		obj.capacityTest();
	}
}

Output:

16
16
34

Download this example.
 
Next Topic: ensureCapacity(int minCapacity) StringBuilder method in java.
Previous Topic: reverse() StringBuilder method in java.

Related Topics:

StringBuilder in java.
append(String str) StringBuilder method in java.
insert(int offset, String str) StringBuilder method in java.
replace(int startIndex, int endIndex, String str) StringBuilder method in java.
delete(int startIndex, int endIndex) StringBuilder method in java.
reverse() StringBuilder method in java.
capacity() StringBuilder method in java.
ensureCapacity(int minCapacity) StringBuilder method in java.
StringTokenizer in java.

 


Comments are closed.