Java IntBuffer equals()用法及代碼示例

java.nio.IntBuffer類的equals()方法用於檢查給定的緩衝區是否等於另一個對象。

當且僅當兩個int緩衝區相等時，

它們具有相同的元素類型，
它們具有相同數量的剩餘元素，並且
其餘元素的兩個序列(與它們的起始位置無關)是按點排列的
等於。

如果(a == b)||，則此方法認為兩個int元素a和b相等。 (Int.isNaN(a)&& Int.isNaN(b))。與Int.equals(Object)不同，值-0和+0被視為相等。

一個int緩衝區不等於任何其他類型的對象。

用法:

public boolean equals(Object ob)

參數：此方法將ob(與該緩衝區進行比較的對象)作為參數。

返回值：僅當此緩衝區等於給定對象時，此方法返回true。

下麵是說明equals()方法的示例：

範例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 IntBuffer 1 
        int capacity1 = 10; 
  
        // Declaring the capacity of the  IntBuffer 2 
        int capacity2 = 10; 
  
        // Creating the IntBuffer 
        try { 
  
            // creating object of Intbuffer 1 
            // and allocating size capacity 
            IntBuffer ib1 = IntBuffer.allocate(capacity1); 
  
            // creating object of Intbuffer 2 
            // and allocating size capacity 
            IntBuffer ib2 = IntBuffer.allocate(capacity2); 
  
            // putting the value in Intbuffer 1 
            ib1.put(8); 
            ib1.put(2, 9); 
            ib1.rewind(); 
  
            // putting the value in Intbuffer 2 
            ib2.put(8); 
            ib2.put(2, 9); 
            ib2.rewind(); 
  
            // print the IntBuffer 1 
            System.out.println(" IntBuffer 1:  "
                               + Arrays.toString(ib1.array())); 
  
            // print the IntBuffer 2 
            System.out.println(" IntBuffer 2:  "
                               + Arrays.toString(ib2.array())); 
  
            // checking the equality of both IntBuffer 
            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"); 
        } 
    } 
}

輸出：

IntBuffer 1:  [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
 IntBuffer 2:  [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
Both are equal

範例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 IntBuffer 1 
        int capacity1 = 10; 
  
        // Declaring the capacity of the  IntBuffer 2 
        int capacity2 = 5; 
  
        // Creating the IntBuffer 
        try { 
  
            // creating object of Intbuffer 1 
            // and allocating size capacity 
            IntBuffer ib1 = IntBuffer.allocate(capacity1); 
  
            // creating object of Intbuffer 2 
            // and allocating size capacity 
            IntBuffer ib2 = IntBuffer.allocate(capacity2); 
  
            // putting the value in Intbuffer 1 
            ib1.put(8); 
            ib1.put(2, 9); 
            ib1.rewind(); 
  
            // putting the value in Intbuffer 2 
            ib2.put(8); 
            ib2.put(2, 9); 
            ib2.rewind(); 
  
            // print the IntBuffer 1 
            System.out.println(" IntBuffer 1:  "
                               + Arrays.toString(ib1.array())); 
  
            // print the IntBuffer 2 
            System.out.println(" IntBuffer 2:  "
                               + Arrays.toString(ib2.array())); 
  
            // checking the equality of both IntBuffer 
            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"); 
        } 
    } 
}

輸出：

IntBuffer 1:  [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
 IntBuffer 2:  [8, 0, 9, 0, 0]
Both are not equal

範例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 IntBuffer 1 
        int capacity1 = 10; 
  
        // Declaring the capacity of the  IntBuffer 2 
        int capacity2 = 10; 
  
        // Creating the IntBuffer 
        try { 
  
            // creating object of Intbuffer 1 
            // and allocating size capacity 
            IntBuffer ib1 = IntBuffer.allocate(capacity1); 
  
            // creating object of Intbuffer 2 
            // and allocating size capacity 
            IntBuffer ib2 = IntBuffer.allocate(capacity2); 
  
            // putting the value in Intbuffer 1 
            ib1.put(8); 
            ib1.put(2, 9); 
            ib1.rewind(); 
  
            // putting the value in Intbuffer 2 
            ib2.put(8); 
            ib2.put(2, 9); 
            ib2.put(3, 7); 
            ib2.put(4, 4); 
            ib2.rewind(); 
  
            // print the IntBuffer 1 
            System.out.println(" IntBuffer 1:  "
                               + Arrays.toString(ib1.array())); 
  
            // print the IntBuffer 2 
            System.out.println(" IntBuffer 2:  "
                               + Arrays.toString(ib2.array())); 
  
            // checking the equality of both IntBuffer 
            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"); 
        } 
    } 
}

輸出：

IntBuffer 1:  [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
 IntBuffer 2:  [8, 0, 9, 7, 4, 0, 0, 0, 0, 0]
Both are not equal

相關用法

注：本文由純淨天空篩選整理自nitin_sharma大神的英文原創作品 IntBuffer equals() method in Java。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。