El método hasRemaining() de la clase java.nio.Buffer se usa para saber si hay algún elemento entre la posición actual y el límite.
Sintaxis:
public final boolean hasRemaining()
Devoluciones: este método devolverá verdadero si, y solo si, queda al menos un elemento en este búfer.
A continuación se muestran los ejemplos para ilustrar el método hasRemaining() :
Ejemplos 1:
// Java program to demonstrate
// hasRemaining() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the ByteBuffer
int capacity = 10;
// creating object of bytebuffer
// and allocating size capacity
ByteBuffer bb = ByteBuffer.allocate(capacity);
// putting the value in bytebuffer
bb.put((byte)10);
bb.put((byte)20);
bb.rewind();
// Typecast bytebuffer to Buffer
Buffer buffer = (Buffer)bb;
// checking buffer is backed by array or not
boolean isRemain = buffer.hasRemaining();
// checking if else condition
if (isRemain)
System.out.println("there is at least one "
+ "element remaining "
+ "in this buffer");
else
System.out.println("there is no "
+ "element remaining "
+ "in this buffer");
}
}
Producción:
there is at least one element remaining in this buffer
Ejemplos 2:
// Java program to demonstrate
// hasRemaining() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the ByteBuffer
int capacity = 0;
// creating object of bytebuffer
// and allocating size capacity
ByteBuffer bb = ByteBuffer.allocate(capacity);
// Typecast bytebuffer to Buffer
Buffer buffer = (Buffer)bb;
// checking buffer is backed by array or not
boolean isRemain = buffer.hasRemaining();
// checking if else condition
if (isRemain)
System.out.println("there is at least one "
+ "element remaining"
+ " in this buffer");
else
System.out.println("there is no "
+ "element remaining"
+ " in this buffer");
}
}
Producción:
there is no element remaining in this buffer
Referencia: https://docs.oracle.com/javase/9/docs/api/java/nio/Buffer.html#hasRemaining–
Publicación traducida automáticamente
Artículo escrito por RohitPrasad3 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA