El método duplicate() de java.nio.LongBuffer Class se usa para crear un nuevo búfer largo que comparte el contenido del búfer dado.
Sintaxis:
public abstract LongBuffer duplicate()
Valor de retorno: este método devuelve el nuevo búfer largo que lleva el contenido del búfer largo anterior
A continuación se muestran los ejemplos para ilustrar el método duplicate() :
Ejemplos 1: uso de Longbuffer directo
// Java program to demonstrate
// duplicate() method
// Using direct Longbuffer
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the LongBuffer
int capacity = 10;
// Creating the LongBuffer
try {
// creating object of Longbuffer
// and allocating size capacity
LongBuffer ib1 = LongBuffer.allocate(capacity);
// putting the value in Longbuffer
ib1.put(8);
ib1.put(2, 9);
ib1.rewind();
// prLong the Original LongBuffer
System.out.println("Original LongBuffer: "
+ Arrays.toString(ib1.array()));
// Creating a duplicate copy of LongBuffer
// using duplicate() method
LongBuffer ib2 = ib1.duplicate();
// prLong the duplicate copy of LongBuffer
System.out.println("Duplicate LongBuffer: "
+ Arrays.toString(ib2.array()));
}
catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException catched");
}
catch (ReadOnlyBufferException e) {
System.out.println("ReadOnlyBufferException catched");
}
}
}
Producción:
Original LongBuffer: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0] Duplicate LongBuffer: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
Ejemplos 2: Usar Longbuffer de solo lectura
// Java program to demonstrate
// duplicate() method
// using read-onlyLongbuffer
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the LongBuffer
int capacity = 10;
// Creating the LongBuffer
try {
// creating object of Longbuffer
// and allocating size capacity
LongBuffer ib1 = LongBuffer.allocate(capacity);
// putting the value in Longbuffer
ib1.put(8);
ib1.put(2, 9);
ib1.rewind();
// prLong the Original LongBuffer
System.out.println("Original LongBuffer: "
+ Arrays.toString(ib1.array()));
// Creating a read-only copy of LongBuffer
// using asReadOnlyBuffer() method
LongBuffer readonly = ib1.asReadOnlyBuffer();
// prLong the read-only copy of LongBuffer
System.out.print("read-only LongBuffer: ");
while (readonly.hasRemaining())
System.out.print(readonly.get() + ", ");
System.out.println("");
// Rewinding the readonly LongBuffer
readonly.rewind();
// Creating a duplicate copy of LongBuffer
// using duplicate() method
LongBuffer ib2 = readonly.duplicate();
// prLong the duplicate copy of LongBuffer
System.out.print("duplicate copy of read-only LongBuffer: ");
while (ib2.hasRemaining())
System.out.print(ib2.get() + ", ");
System.out.println("");
}
catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException catched");
}
catch (ReadOnlyBufferException e) {
System.out.println("ReadOnlyBufferException catched");
}
}
}
Producción:
Original LongBuffer: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0] read-only LongBuffer: 8, 0, 9, 0, 0, 0, 0, 0, 0, 0, duplicate copy of read-only LongBuffer: 8, 0, 9, 0, 0, 0, 0, 0, 0, 0,
Publicación traducida automáticamente
Artículo escrito por pawan_asipu y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA