java.nio.LongBuffer类的equals()方法用于检查给定的缓冲区是否等于另一个对象。
当且仅当两个Long缓冲区相等时,
- 它们具有相同的元素类型,
- 它们具有相同数量的剩余元素,并且
- 其余元素的两个序列(与它们的起始位置无关)是纵向的
等于。
如果(a == b)||,则此方法认为两个Long元素a和b相等。 (Long.isNaN(a)&& Long.isNaN(b))。与Long.equals(Object)不同,值-0和+0被视为相等。
Long缓冲区不等于任何其他类型的对象。
用法:
public boolean equals(Object ob)
参数:此方法将ob(此缓冲区要与之比较的对象)作为参数。
返回值:仅当此缓冲区等于给定对象时,此方法返回true。
下面是说明equals()方法的示例:
范例1:
// Java program to demonstrate
// equals() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the LongBuffer 1
int capacity1 = 10;
// Declaring the capacity of the LongBuffer 2
int capacity2 = 10;
// Creating the LongBuffer
try {
// creating object of Longbuffer 1
// and allocating size capacity
LongBuffer ib1 = LongBuffer.allocate(capacity1);
// creating object of Longbuffer 2
// and allocating size capacity
LongBuffer ib2 = LongBuffer.allocate(capacity2);
// putting the value in Longbuffer 1
ib1.put(8);
ib1.put(2, 9);
ib1.rewind();
// putting the value in Longbuffer 2
ib2.put(8);
ib2.put(2, 9);
ib2.rewind();
// prLong the LongBuffer 1
System.out.println(" LongBuffer 1: "
+ Arrays.toString(ib1.array()));
// prLong the LongBuffer 2
System.out.println(" LongBuffer 2: "
+ Arrays.toString(ib2.array()));
// checking the equality of both LongBuffer
boolean ibb = ib1.equals(ib2);
// checking if else condition
if (ibb)
System.out.println("Both are equal");
else
System.out.println("Both are not equal");
}
catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException catched");
}
catch (ReadOnlyBufferException e) {
System.out.println("ReadOnlyBufferException catched");
}
}
}
输出:
LongBuffer 1: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0] LongBuffer 2: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0] Both are equal
范例2:
// Java program to demonstrate
// equals() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the LongBuffer 1
int capacity1 = 10;
// Declaring the capacity of the LongBuffer 2
int capacity2 = 5;
// Creating the LongBuffer
try {
// creating object of Longbuffer 1
// and allocating size capacity
LongBuffer ib1 = LongBuffer.allocate(capacity1);
// creating object of Longbuffer 2
// and allocating size capacity
LongBuffer ib2 = LongBuffer.allocate(capacity2);
// putting the value in Longbuffer 1
ib1.put(8);
ib1.put(2, 9);
ib1.rewind();
// putting the value in Longbuffer 2
ib2.put(8);
ib2.put(2, 9);
ib2.rewind();
// prLong the LongBuffer 1
System.out.println(" LongBuffer 1: "
+ Arrays.toString(ib1.array()));
// prLong the LongBuffer 2
System.out.println(" LongBuffer 2: "
+ Arrays.toString(ib2.array()));
// checking the equality of both LongBuffer
boolean ibb = ib1.equals(ib2);
// checking if else condition
if (ibb)
System.out.println("Both are equal");
else
System.out.println("Both are not equal");
}
catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException catched");
}
catch (ReadOnlyBufferException e) {
System.out.println("ReadOnlyBufferException catched");
}
}
}
输出:
LongBuffer 1: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0] LongBuffer 2: [8, 0, 9, 0, 0] Both are not equal
范例3:
// Java program to demonstrate
// equals() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the LongBuffer 1
int capacity1 = 10;
// Declaring the capacity of the LongBuffer 2
int capacity2 = 10;
// Creating the LongBuffer
try {
// creating object of Longbuffer 1
// and allocating size capacity
LongBuffer ib1 = LongBuffer.allocate(capacity1);
// creating object of Longbuffer 2
// and allocating size capacity
LongBuffer ib2 = LongBuffer.allocate(capacity2);
// putting the value in Longbuffer 1
ib1.put(8);
ib1.put(2, 9);
ib1.rewind();
// putting the value in Longbuffer 2
ib2.put(8);
ib2.put(2, 9);
ib2.put(3, 7);
ib2.put(4, 4);
ib2.rewind();
// prLong the LongBuffer 1
System.out.println(" LongBuffer 1: "
+ Arrays.toString(ib1.array()));
// prLong the LongBuffer 2
System.out.println(" LongBuffer 2: "
+ Arrays.toString(ib2.array()));
// checking the equality of both LongBuffer
boolean ibb = ib1.equals(ib2);
// checking if else condition
if (ibb)
System.out.println("Both are equal");
else
System.out.println("Both are not equal");
}
catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException catched");
}
catch (ReadOnlyBufferException e) {
System.out.println("ReadOnlyBufferException catched");
}
}
}
输出:
LongBuffer 1: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0] LongBuffer 2: [8, 0, 9, 7, 4, 0, 0, 0, 0, 0] Both are not equal
相关用法
- Java LongBuffer hasArray()用法及代码示例
- Java LongBuffer arrayOffset()用法及代码示例
- Java LongBuffer allocate()用法及代码示例
- Java LongBuffer slice()用法及代码示例
- Java LongBuffer asReadOnlyBuffer()用法及代码示例
- Java LongBuffer duplicate()用法及代码示例
- Java LongBuffer compact()用法及代码示例
- Java LongBuffer wrap()用法及代码示例
- Java LongBuffer rewind()用法及代码示例
- Java LongBuffer limit()用法及代码示例
- Java LongBuffer mark()用法及代码示例
- Java LongBuffer clear()用法及代码示例
- Java LongBuffer flip()用法及代码示例
- Java LongBuffer reset()用法及代码示例
- Java LongBuffer put()用法及代码示例
注:本文由纯净天空筛选整理自pawan_asipu大神的英文原创作品 LongBuffer equals() method in Java。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。