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CharBuffer allocate() method in Java
A new CharBuffer can be allocated using the method allocate() in the class java.nio.CharBuffer. This method requires a single parameter i.e. the capacity of the buffer. It returns the new CharBuffer that is allocated. If the capacity provided is negative, then the IllegalArgumentException is thrown.
A program that demonstrates this is given as follows −
Example
import java.nio.*; import java.util.*; public class Demo { public static void main(String[] args) { int n = 5; try { CharBuffer buffer = CharBuffer.allocate(n); buffer.put('A'); buffer.put('P'); buffer.put('P'); buffer.put('L'); buffer.put('E'); buffer.rewind(); System.out.println("The CharBuffer is: " + Arrays.toString(buffer.array())); } catch (IllegalArgumentException e) { System.out.println("Error!!! IllegalArgumentException"); } catch (ReadOnlyBufferException e) { System.out.println("Error!!! ReadOnlyBufferException"); } } }
Output
The CharBuffer is: [A, P, P, L, E]
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