Java 中的 LongBuffer 重复()方法
原文:https://www . geesforgeks . org/longbuffer-replicate-in-method-Java/
java.nio.LongBuffer 类的replicate()方法用于创建共享给定缓冲区内容的新的长缓冲区。
语法:
public abstract LongBuffer duplicate()
返回值:该方法返回携带前一个长缓冲区内容的新长缓冲区
以下是说明复制()方法的示例:
实施例 1: 使用直接长臂
// 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");
}
}
}
Output:
Original LongBuffer: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
Duplicate LongBuffer: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
示例 2: 使用只读 Longbuffer
// 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");
}
}
}
Output:
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,
版权属于：月萌API www.moonapi.com，转载请注明出处
