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To save some typing and clarify my code, is there a standard version of the following method?
public static boolean bothNullOrEqual(Object x, Object y) { return ( x == null ? y == null : x.equals(y) ); } 
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Objects provide a static Equals method, which can be used when there is a chance that one or both of the parameters can be null, other than that, it behaves identically to the virtual Object. Equals method. There is also a static ReferenceEquals method, which provides a guaranteed way to check for reference equality.
Code Correctness: null Argument to equals()equals(null) will always be false. The program uses the equals() method to compare an object with null . This comparison will always return false, since the object is not null . (If the object is null , the program will throw a NullPointerException ).
You can override the equals method on a record, if you want a behavior other than the default. But if you do override equals , be sure to override hashCode for consistent logic, as you would for a conventional Java class.
The equals() method of java. util. Set class is used to verify the equality of an Object with a Set and compare them. The method returns true if the size of both the sets are equal and both contain the same elements.
With Java 7 you can now directly do a null safe equals:
Objects.equals(x, y)
(The Jakarta Commons library ObjectUtils.equals() has become obsolete with Java 7)
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if by some chance you are have access to the Jakarta Commons library there is ObjectUtils.equals() and lots of other useful functions.
EDIT: misread the question initially
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