obtener()
El método get() de java.nio.LongBuffer Class se usa para leer Long en la posición actual del búfer dado y luego incrementar la posición.
Sintaxis:
public abstract Long get()
Valor devuelto: este método devuelve el valor largo en la posición actual del búfer.
Lanza: este método lanza BufferUnderflowException : si la posición actual del búfer no es más pequeña que su límite, se lanza esta excepción.
A continuación se muestran los ejemplos para ilustrar el método get():
Ejemplo 1:
Java
// Java program to demonstrate
// get() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the LongBuffer
int capacity = 5;
// Creating the LongBuffer
try {
// creating object of Longbuffer
// and allocating size capacity
LongBuffer ib = LongBuffer.allocate(capacity);
// putting the value in Longbuffer
ib.put(8);
ib.put(9);
ib.put(1);
ib.rewind();
// prLong the LongBuffer
System.out.println("Original LongBuffer: "
+ Arrays.toString(ib.array()));
// Reads the Long at this buffer's current position
// using get() method
Long value = ib.get();
// prLong the Long value
System.out.println("Long Value: " + value);
// Reads the Long at this buffer's next position
// using get() method
Long value1 = ib.get();
// prLong the Long value
System.out.print("Next Long Value: " + value1);
}
catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException catched");
}
catch (ReadOnlyBufferException e) {
System.out.println("ReadOnlyBufferException catched");
}
catch (BufferUnderflowException e) {
System.out.println("Exception throws: " + e);
}
}
}
Producción:
Original LongBuffer: [8, 9, 1, 0, 0] Long Value: 8 Next Long Value: 9
Ejemplo 2:
Java
// Java program to demonstrate
// get() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the LongBuffer
int capacity = 3;
// Creating the LongBuffer
try {
// creating object of Longbuffer
// and allocating size capacity
LongBuffer ib = LongBuffer.allocate(capacity);
// putting the value in Longbuffer
ib.put(8);
ib.put(9);
// prLong the LongBuffer
System.out.println("Original LongBuffer: "
+ Arrays.toString(ib.array()));
// Reads the Long at this buffer's current position
// using get() method
Long value = ib.get();
// prLong the Long value
System.out.println("Long Value: " + value);
// Reads the Long at this buffer's next position
// using get() method
System.out.print("Since the buffer current position is incremented");
System.out.print(" to greater than its limit ");
Long value1 = ib.get();
// prLong the Long value
System.out.print("Next Long Value: " + value1);
}
catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException catched");
}
catch (ReadOnlyBufferException e) {
System.out.println("ReadOnlyBufferException catched");
}
catch (BufferUnderflowException e) {
System.out.println("Exception throws : " + e);
}
}
}
Producción:
Original LongBuffer: [8, 9, 0] Long Value: 0 Since the buffer current position is incremented to greater than its limit Exception throws : java.nio.BufferUnderflowException
obtener (índice largo)
El método get (índice largo) de LongBuffer se usa para leer el artículo en un índice específico.
Sintaxis:
public abstract Long get(Long index)
Parámetros: este método toma el índice (el índice del que se leerá el largo) como parámetro.
Valor devuelto: este método devuelve el valor largo en el índice dado.
Excepción: este método genera una excepción IndexOutOfBoundsException . Si el índice es negativo o no menor que el límite del búfer, se lanza esta excepción.
A continuación se muestran los ejemplos para ilustrar el método get (índice largo):
Ejemplo 1:
Java
// Java program to demonstrate
// get(Long index) method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the LongBuffer
int capacity = 3;
// Creating the LongBuffer
try {
// creating object of Longbuffer
// and allocating size capacity
LongBuffer ib = LongBuffer.allocate(capacity);
// putting the value in Longbuffer
ib.put(8);
ib.put(9);
ib.put(6);
// prLong the LongBuffer
System.out.println("Original LongBuffer: "
+ Arrays.toString(ib.array()));
// Reads the Long at the index 0 of the Longbuffer
// using get() method
Long value0 = ib.get(0);
// prLong the Long value
System.out.println("Long Value at index 0: " + value0);
// Reads the Long at the index 1 of the Longbuffer
// using get() method
Long value1 = ib.get(1);
// prLong the Long value
System.out.println("Long Value at index 1: " + value1);
// Reads the Long at the index 2 of the Longbuffer
// using get() method
Long value2 = ib.get(2);
// prLong the Long value
System.out.println("Long Value at index 2: " + value2);
}
catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException catched");
}
catch (IndexOutOfBoundsException e) {
System.out.println("ReadOnlyBufferException catched");
}
catch (BufferUnderflowException e) {
System.out.println("Exception throws : " + e);
}
}
}
Producción:
Original LongBuffer: [8, 9, 6] Long Value at index 0: 8 Long Value at index 1: 9 Long Value at index 2: 6
Ejemplo 2:
Java
// Java program to demonstrate
// get() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the LongBuffer
int capacity = 3;
// Creating the LongBuffer
try {
// creating object of Longbuffer
// and allocating size capacity
LongBuffer ib = LongBuffer.allocate(capacity);
// putting the value in Longbuffer
ib.put(6);
ib.put(8);
ib.put(12);
// prLong the LongBuffer
System.out.println("Original LongBuffer: "
+ Arrays.toString(ib.array()));
// Reads the Long at the index 0 of the Longbuffer
// using get() method
Long value0 = ib.get(0);
// prLong the Long value
System.out.println("Long Value at index 0: " + value0);
// Reads the Long at the index 1 of the Longbuffer
// using get() method
Long value1 = ib.get(1);
// prLong the Long value
System.out.println("Long Value at index 1: " + value1);
// Reads the Long at the index 2 of the Longbuffer
// using get() method
System.out.println("Trying to get the Long"
+ " of index greater than its limit ");
Long value2 = ib.get(4);
// prLong the Long value
System.out.println("Long Value at index 2: " + value2);
}
catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException catched");
}
catch (IndexOutOfBoundsException e) {
System.out.println("Exception thrown: " + e);
}
catch (BufferUnderflowException e) {
System.out.println("Exception throws : " + e);
}
}
}
Producción:
Original LongBuffer: [6, 8, 12] Long Value at index 0: 6 Long Value at index 1: 8 Trying to get the Long of index greater than its limit Exception thrown: java.lang.IndexOutOfBoundsException
Publicación traducida automáticamente
Artículo escrito por pawan_asipu y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA