Java Collections max() Method
The max() is a Java Collections class method which returns the maximum value for the given inputs. All elements in the collection must implement the Comparable interface. There is two different types of Java max() method which can be differentiated depending on its parameter. These are:
- Java Collections max(coll) Method
- Java Collections min(coll, comp) Method
Java Collections max(coll) Method
The max() method of Java Collections class is used to get the maximum element of the given collection, according to the natural ordering of its elements.
Java Collections max(coll, comp) Method
The max() method of Java Collections class is used to get the maximum element of the given collection, according to the order induced by the specified comparator.
Syntax
Following is the declaration of max() method:
Parameter
Parameter | Description | Required/Optional |
---|---|---|
coll | It is the collection whose maximum element is to be determined. | Required |
comp | It is the comparator with which we determine the maximum element. | Required |
Returns
Method | Returns |
---|---|
max(Collection<? extends T> coll) | It returns the maximum element of the given collection, according to the natural ordering of its elements. |
max(Collection<? extends T> coll, Comparator<? super T> comp) | It returns the maximum element of the given collection, according to the order of the specified comparable. |
Exceptions
The max() method throws the following exceptions-
ClassCastException– It throws this exception if the collection contains elements that are not mutually comparable (for example, strings and integers).
NoSuchElementException– It throws this exception if the collection is empty.
Compatibility Version
Java 1.4 and above
Example 1
Output:
Max val: S
Example 2
Output:
Maximum element is: 250
Example 3
Output:
Output: 101
Example 4
Output:
Maximum Element is: XML Maximum Value is: -10