You can have a Map as key but as you pointed out since a Map is (typically) mutable the key changes.
Read moreAre keys in a map unique?
The keys are unique in all maps . The difference between the various maps implementations concern the possibility of null keys, the order of iteration and concurrency issues.
Read moreAre keys in a map unique?
The keys are unique in all maps . The difference between the various maps implementations concern the possibility of null keys, the order of iteration and concurrency issues.
Read moreWhat method can be used to create a new instance of an object?
To create a new instance of an object, we use the “new” keyword . This keyword creates a new instance of an object, which we can then assign to a variable, or invoke methods. For example, to create a new StringBuffer object, we would use the new keyword in the following way.
Read moreHow do you initialize an object in Java 8?
Right now I am passing to the following way, by creating the object first, calling the methods to set the values, then passing it to another object method. To to = new To(); to. setEmail(“[email protected]”); to.
Read moreHow do you initialize an object in Java 8?
Right now I am passing to the following way, by creating the object first, calling the methods to set the values, then passing it to another object method. To to = new To(); to. setEmail(“[email protected]”); to.
Read more