public final class Objects

Object
Objects

This is a compatibility class which supports the java.util.Objects API. On platforms that don’t support this class (e.g. Android) the build server will automatically remap all uses of java.util.Objects to use this implementation instead.

This class consists of static utility methods for operating on objects. These utilities include null-safe or null-tolerant methods for computing the hash code of an object, returning a string for an object, and comparing two objects.

Constructors

public Objects()

Methods

`public static boolean equals(Object a, Object b)`	Returns true if the arguments are equal to each other and false otherwise.
`public static int hashCode(Object o)`	Returns the hash code of a non-null argument and 0 for a null argument.
`public static` `String toString(Object o)`
`public static` `String toString(Object o, String nullDefault)`
`public static <T> int compare(T a, T b,` `Comparator<? super T> c)`
`public static <T> T requireNonNull(T obj)`
`public static <T> T requireNonNull(T obj,` `String message)`
`public static boolean nonNull(Object obj)`
`public static boolean deepEquals(Object a, Object b)`
`public static int hash(Object... values)`

Inherited methods

From Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait, clone

Constructor details

Objects

public Objects()

Method details

equals

public static boolean equals(Object a, Object b)

Returns true if the arguments are equal to each other and false otherwise. Consequently, if both arguments are null, true is returned and if exactly one argument is null, false is returned. Otherwise, equality is determined by using the equals method of the first argument.

hashCode

public static int hashCode(Object o)

Returns the hash code of a non-null argument and 0 for a null argument.

toString

public static String toString(Object o)

toString

public static String toString(Object o, String nullDefault)

compare

public static <T> int compare(T a, T b, Comparator<? super T> c)

requireNonNull

public static <T> T requireNonNull(T obj)

requireNonNull

public static <T> T requireNonNull(T obj, String message)

nonNull

public static boolean nonNull(Object obj)

deepEquals

public static boolean deepEquals(Object a, Object b)

hash

public static int hash(Object... values)