Java Array equals Method

The Java Arrays.equals Method is one of the Java Array Method which is used to check whether user specified arrays are equal or not, and if they are equal it return Boolean TRUE otherwise FALSE. In this article we will show you, How to compare the Arrays using Java Array equals method with example. Before we get into the example, the basic syntax of the Arrays.equals in Java Programming language is as shown below.

Java Array equals Method syntax

The Java Programming Language provides nine different methods to compare the user specified Java Arrays. Following method will accept two Boolean Arrays (a1 and a2) as the parameters and check whether a1 , a2 are equal or Not, and if they are equal it return boolean TRUE otherwise FALSE

public static boolean equals(Boolean[] al, Boolean[] a2); // It will return Boolean

//In order to use in program

Arrays.equals(Boolean[] al, Boolean[] a2);

Following method will accept two Byte Arrays (b1 and b2) as the parameters and check whether b1 , b2 are equal or Not, and if they are equal it return boolean TRUE otherwise FALSE

public static boolean equals(Byte[] bl, Byte[] b2); // It will return Boolean

//In order to use in program

Arrays.equals(Byte[] bl, Byte[] b2);

Following method will accept two Short Arrays (s1 and s2) as the parameters and check whether s1 , s2 are equal or Not, and if they are equal it return boolean TRUE otherwise FALSE

public static boolean equals(short[] sl, short[] s2); // It will return Boolean

//In order to use in program

Arrays.equals(short[] sl, short[] s2);

Following method will accept two Character Arrays (c1 and c2) as the parameters and check whether c1 , c2 are equal or Not, and if they are equal it return boolean TRUE otherwise FALSE

public static boolean equals(char[] cl, char[] c2); // It will return Boolean

//In order to use in program

Arrays.equals(char[] cl, char[] c2);

Following method will accept two Integer Arrays (i1 and i2) as the parameters and check whether i1 , i2 are equal or Not, and if they are equal it return boolean TRUE otherwise FALSE

public static boolean equals(int[] il, int[] i2); // It will return Boolean

//In order to use in program

Arrays.equals(int[] il, int[] i2);

Following method will accept two Long Arrays (l1 & l2) as the arguments and check whether l1 , l2 are equal or Not, and if they are equal it return boolean TRUE otherwise FALSE

public static boolean equals(long[] ll, long[] l2); // It will return Boolean

//In order to use in program

Arrays.equals(long[] ll, long[] l2);

Following method will accept two Double Arrays (d1 and d2) as the parameters and check whether d1 , d2 are equal or Not, and if they are equal it return boolean TRUE otherwise FALSE

public static boolean equals(double[] dl, double[] d2); // It will return Boolean

//In order to use in program

Arrays.equals(double[] dl, double[] d2);

Following method will accept two Float Arrays (f1 and f2) as the parameters and check whether f1 , f2 are equal or Not, and if they are equal it return boolean TRUE otherwise FALSE

public static boolean equals(float[] fl, float[] f2); // It will return Boolean

//In order to use in program

Arrays.equals(float[] fl, float[] f2);

Following method will accept two Object Arrays (Obj1 and Obj2) as the parameters and check whether Obj1 , Obj2 are equal or Not, and if they are equal it return boolean TRUE otherwise FALSE

public static boolean equals(Object[] Objl, Object[] Obj2); // It will return Boolean

//In order to use in program

Arrays.equals(Object[] Objl, Object[] Obj2);

Java Array equals to compare Byte Arrays

In this Java program we declared three byte arrays with random array elements, and then we will call the public static boolean equals (byte[] b1, byte[] b2) method to check whether they are equal or not.

JAVA CODE

// Java Example to Check whether Byte Arrays are Equal or Not

package ArrayMethods;

import java.util.Arrays;

public class ByteEquals {

public static void main(String[] args) {

byte[] byteArray = {8, 20, 45, 12};

byte[] bytArray = {8, 20, 45, 12};

byte[] bitArray = {10, 25, 8, 19, 16};

//Checking for Equality

System.out.println(Arrays.equals(byteArray, bitArray));

if(Arrays.equals(byteArray, bytArray)) {

System.out.println("Two Byte Arrays are Equal");

}

else {

System.out.println("Byte Arrays are Not Equal");

}

OUTPUT

ANALYSIS

First we declared three byte Arrays and assigned some random values as the array elements using following statement

byte[] byteArray = {8, 20, 45, 12};

byte[] bytArray = {8, 20, 45, 12};

byte[] bitArray = {10, 25, 8, 19, 16};

Next, we used the Java Arrays.equals method to check whether the above specified byte arrays (byteArray, bitArray) are equal or not.

1	System.out.println(Arrays.equals(byteArray, bitArray));

Next, we used the Java If Else Statement to check whether the above specified byte arrays (byteArray, bitArray) are equal or not.

If the statement inside the If is True (If they are equal), System.out.println(” Two Byte Arrays are Equal “); statement will be printed
Else System.out.println(“Byte Arrays are Not Equal”); statement will be printed

Java Array equals to compare Boolean Arrays

In this Java program we declared three boolean arrays with random array elements, and then we will call the public static boolean equals (boolean[] a1, boolean[] a2) method to check whether they are equal or not.

JAVA CODE

// Java Example to Check whether Boolean Arrays are Equal or Not

package ArrayMethods;

import java.util.Arrays;

public class BooleanEquals {

public static void main(String[] args) {

boolean[] bool = {true, false, false, true};

boolean[] boolArray = {true, false, true, false};

boolean[] anBoolArray = {true, false, false, true};

//Checking for Equality

System.out.println(Arrays.equals(bool, boolArray));

if(Arrays.equals(bool, anBoolArray)) {

System.out.println("Both the Boolean Arrays are Equal");

}

else {

System.out.println("Boolean Arrays are Not Equal");

}

OUTPUT

Java Array equals to compare Short Arrays

In this Java program we declared three short arrays with random array elements, and then we will call the public static boolean equals (short[] s1, short[] s2) method to check whether they are equal or not.

JAVA CODE

// Java Example to Check whether Short Arrays are Equal or Not

package ArrayMethods;

import java.util.Arrays;

public class ShortEquals {

public static void main(String[] args) {

short[] ShtArray = {5, 9, 11, 7, 6};

short[] ShrtArray = {5, 9, 11, 7, 6};

short[] ShortArray = {12, 6, 8, 3, 2};

//Checking for Equality

System.out.println(Arrays.equals(ShtArray, ShrtArray));

if(Arrays.equals(ShrtArray, ShortArray)) {

System.out.println("Both the Short Arrays are Equal");

}

else {

System.out.println("Short Arrays are Not Equal");

}

OUTPUT

Java Array equals to compare Integer Arrays

In this Java program we declared three integer arrays with random array elements, and then we will call the public static boolean equals (int[] i1, int[] i2) method to check whether they are equal or not.

JAVA CODE

// Java Example to Check whether Integer Arrays are Equal or Not

package ArrayMethods;

import java.util.Arrays;

public class IntEquals {

public static void main(String[] args) {

int[] intArray = {28, 64, 48, 95, 15};

int[] itArray = {28, 64, 48, 95, 15};

int[] anIntArray = {28, 64, 48, 105, 125};

//Checking for Equality

System.out.println(Arrays.equals(intArray, anIntArray));

if(Arrays.equals(intArray, itArray)) {

System.out.println("Both the Integer Arrays are Equal");

}

else {

System.out.println("Integer Arrays are Not Equal");

}

OUTPUT

Java Array equals to compare Long Arrays

In this Java program we declared three long arrays with random array elements, and then we will call the public static boolean equals (long[] l1, long[] l2) method to check whether they are equal or not.

JAVA CODE

// Java Example to Check whether Long Arrays are Equal or Not

package ArrayMethods;

import java.util.Arrays;

public class LongEquals {

public static void main(String[] args) {

long[] LnArray = {164, 17, 198, 178, 135};

long[] LngArray = {164, 17, 198, 178, 135};

long[] LongArray = {250, 100, 80, 160, 190};

//Checking for Equality

System.out.println(Arrays.equals(LnArray, LongArray));

if(Arrays.equals(LnArray, LngArray)) {

System.out.println("Both the Long Arrays are Equal");

}

else {

System.out.println("Long Arrays are Not Equal");

}

OUTPUT

Java Array equals to compare Double Arrays

In this Java program we declared three double arrays with random array elements, and then we will call the public static boolean equals (double[] d1, double[] d2) method to check whether they are equal or not.

JAVA CODE

// Java Example to Check whether Double Arrays are Equal or Not

package ArrayMethods;

import java.util.Arrays;

public class DoubleEquals {

public static void main(String[] args) {

double[] dblArray = {218.456, 120.654, 98.4148, 658.945, 315.458};

double[] doubleArray = {218.456, 120.654, 98.4148, 658.945, 315.458};

double[] andoubleArray = {218.45, 102.65, 908.41, 688.94, 325.45};

//Checking for Equality

System.out.println(Arrays.equals(dblArray, andoubleArray));

if(Arrays.equals(dblArray, doubleArray)) {

System.out.println("Both the Double Arrays are Equal");

}

else {

System.out.println("Double Arrays are Not Equal");

}

OUTPUT

Java Array equals to compare Float Arrays

In this Java program we declared three float arrays with random array elements, and then we will call the public static boolean equals (float[] f1, float[] f2) method to check whether they are equal or not.

JAVA CODE

// Java Example to Check whether Float Arrays are Equal or Not

package ArrayMethods;

import java.util.Arrays;

public class FloatEquals {

public static void main(String[] args) {

float[] floatArray = {12.28f, 3.64f, 4.98f, 9.65f, 1.65f};

float[] fltArray = {12.28f, 3.64f, 4.98f, 9.65f, 1.65f};

float[] anfloatArray = {2.98f, 6.45f, 8.65f, 1.55f, 2.5f};

//Checking for Equality

System.out.println(Arrays.equals(floatArray, fltArray));

if(Arrays.equals(floatArray, anfloatArray)) {

System.out.println("Both the Float Arrays are Equal");

}

else {

System.out.println("Float Arrays are Not Equal");

}

OUTPUT

Java Array equals to compare Char Arrays

In this Java program we declared three character arrays with random array elements, and then we will call the public static boolean equals (char[] c1, char[] c2) method to check whether they are equal or not.

JAVA CODE

// Java Example to Check whether Char Arrays are Equal or Not

package ArrayMethods;

import java.util.Arrays;

public class CharEquals {

public static void main(String[] args) {

char[] CharArray = {'g', 'a', 't', 'e'};

char[] CharacterArray = {'g', 'a', 't', 'e', 'w', 'a', 'y'};

char[] Character = {'g', 'a', 't', 'e', 'w', 'a', 'y'};

//Checking for Equality

System.out.println(Arrays.equals(CharArray, CharacterArray));

if(Arrays.equals(CharacterArray, Character)) {

System.out.println("Both the Character Arrays are Equal");

}

else {

System.out.println("Character Arrays are Not Equal");

}

OUTPUT

Java Array equals to compare Objects Arrays

In this Java program we declared three string arrays with random array elements, and then we will call the public static boolean equals (Object[] Obj1, Object[] Obj2) method to check whether they are equal or not.

JAVA CODE

// Java Example to Check whether String Arrays are Equal or Not

package ArrayMethods;

import java.util.Arrays;

public class ObjectEquals {

public static void main(String[] args) {

String[] strArray = {"Orange", "Strawberry","Grape", "Banana", "Apple", "Kiwi"};

String[] stringArray = {"India", "UK", "USA", "Australia", "Japan","China", "Korea"};

String[] strngArray = {"India", "UK", "USA", "Australia", "Japan","China", "Korea"};

//Checking for Equality

System.out.println(Arrays.equals(strArray, stringArray));

if(Arrays.equals(stringArray, strngArray)) {

System.out.println("Both the String Arrays are Equal");

}

else {

System.out.println("String Arrays are Not Equal");

}

OUTPUT

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