Java 程式比較兩個位元組陣列
要比較兩個位元組陣列,請使用 Arrays.equals() 方法。此處我們共宣告並初始化了 4 個數組。
byte[] arr1 = new byte[] { 11, 13, 30, 45, 77, 89 }; byte[] arr2 = new byte[] { 12, 13, 34, 87, 99, 33}; byte[] arr3 = new byte[] { 11, 13, 30, 45, 77, 89 }; byte[] arr4 = new byte[] { 13, 16, 56, 78, 98, 99 };
現在,使用 Arrays.equals() 方法,我們將比較兩個陣列。
Arrays.equals(arr1, arr2);
以相同的方式,其他陣列將逐個比較。
讓我們來看一個完整的示例,以比較兩個位元組陣列。
示例
import java.util.*; public class Demo { public static void main(String[] args) { byte[] arr1 = new byte[] { 11, 13, 30, 45, 77, 89 }; byte[] arr2 = new byte[] { 12, 13, 34, 87, 99, 33}; byte[] arr3 = new byte[] { 11, 13, 30, 45, 77, 89 }; byte[] arr4 = new byte[] { 13, 16, 56, 78, 98, 99 }; System.out.println("Array1 is equal to Array2 = "+Arrays.equals(arr1, arr2)); System.out.println("Array1 is equal to Array3 = "+Arrays.equals(arr1, arr3)); System.out.println("Array1 is equal to Array4 = "+Arrays.equals(arr1, arr4)); System.out.println("Array2 is equal to Array3 = "+Arrays.equals(arr2, arr3)); } }
輸出
Array1 is equal to Array2 = false Array1 is equal to Array3 = true Array1 is equal to Array4 = false Array2 is equal to Array3 = false
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