Java Collections Java Java API
Class:
java.util.Arrays
Methods:
These methods return true if the two specified arrays are equal to one another. Two arrays are considered equal if both arrays contain the same number of elements, and all corresponding pairs of elements in the two arrays are equal. These methods do not recursively match the nested elements.
public static boolean equals(long[] a,
long[] a2)
public static boolean equals(int[] a,
int[] a2)
public static boolean equals(short[] a,
short[] a2)
public static boolean equals(char[] a,
char[] a2)
public static boolean equals(byte[] a,
byte[] a2)
public static boolean equals(boolean[] a,
boolean[] a2)
public static boolean equals(double[] a,
double[] a2)
public static boolean equals(float[] a,
float[] a2)
public static boolean equals(Object[] a,
Object[] a2)
Examples
package com.logicbig.example.arrays;
import java.util.Arrays;
public class EqualsExample {
public static void main(String... args) { Object[] arr1 = {3, 5, 6}; Object[] arr2 = {3, 5, 6};
System.out.println(arr1.equals(arr2)); System.out.println(Arrays.equals(arr1, arr2)); } }
Outputfalse true
This method does not work for nested array. We should use Arrays#deepEquals() in this case. package com.logicbig.example.arrays;
import java.util.Arrays;
public class EqualsExample2 {
public static void main(String... args) { Object[] arr1 = {3, 5, new int[]{6, 7, 9}}; Object[] arr2 = {3, 5, new int[]{6, 7, 9}};
System.out.println(arr1.equals(arr2)); System.out.println(Arrays.equals(arr1, arr2)); } }
Outputfalse false
|
|