Java ShortBuffer equals()方法及示例
java.nio.ShortBuffer 类的 equals() 方法用于检查给定的缓冲区是否与另一个对象相等。
两个短缓冲区是相等的，当且仅当。
它们具有相同的元素类型。它们有相同数量的剩余元素，并且两个剩余元素的序列，独立于其起始位置考虑，是点状的一个短缓冲区不等于任何其他类型的对象。
语法:
public boolean equals(Object ob)
参数 ：该方法以 ob ，即该缓冲区要被比较的对象为参数。
返回值 ：当且仅当这个缓冲区等于给定的对象时，该方法返回 真 。
下面是说明 equals() 方法的例子。
程序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 ShortBuffer 1 int capacity1 = 10; // Declaring the capacity of the ShortBuffer 2 int capacity2 = 10; // Creating the ShortBuffer try { // creating object of Shortbuffer 1 // and allocating size capacity ShortBuffer sb1 = ShortBuffer.allocate(capacity1); // creating object of Shortbuffer 2 // and allocating size capacity ShortBuffer fb2 = ShortBuffer.allocate(capacity2); // putting the value in Shortbuffer 1 sb1.put((short)856); sb1.put(2, (short)961); sb1.rewind(); // putting the value in Shortbuffer 2 fb2.put((short)856); fb2.put(2, (short)961); fb2.rewind(); // print the ShortBuffer 1 System.out.println(" ShortBuffer 1: " + Arrays.toString(sb1.array())); // print the ShortBuffer 2 System.out.println(" ShortBuffer 2: " + Arrays.toString(fb2.array())); // checking the equality of both ShortBuffer boolean fbb = sb1.equals(fb2); // checking if else condition if (fbb) 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:
ShortBuffer 1: [856, 0, 961, 0, 0, 0, 0, 0, 0, 0]ShortBuffer 2: [856, 0, 961, 0, 0, 0, 0, 0, 0, 0]both are equal
程序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 ShortBuffer 1 int capacity1 = 10; // Declaring the capacity of the ShortBuffer 2 int capacity2 = 5; // Creating the ShortBuffer try { // creating object of Shortbuffer 1 // and allocating size capacity ShortBuffer sb1 = ShortBuffer.allocate(capacity1); // creating object of Shortbuffer 2 // and allocating size capacity ShortBuffer sb2 = ShortBuffer.allocate(capacity2); // putting the value in Shortbuffer 1 sb1.put((short)856); sb1.put(2, (short)961); sb1.rewind(); // putting the value in Shortbuffer 2 sb2.put((short)856); sb2.put(2, (short)431); sb2.rewind(); // print the ShortBuffer 1 System.out.println(" ShortBuffer 1: " + Arrays.toString(sb1.array())); // print the ShortBuffer 2 System.out.println(" ShortBuffer 2: " + Arrays.toString(sb2.array())); // checking the equality of both ShortBuffer boolean fbb = sb1.equals(sb2); // checking if else condition if (fbb) 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:
ShortBuffer 1: [856, 0, 961, 0, 0, 0, 0, 0, 0, 0]ShortBuffer 2: [856, 0, 431, 0, 0]both are not equal
