The **`anyMatch` method** of the Stream Interface can be used to check if at least one element of the stream matches or satisfies the provided #key# Predicate: Predicate is a Functional interface, which takes one argument and returns either true or false based on the condition defined. #key#.

The `anyMatch` method is a short-circuiting terminal operation. 
 * It will return `false` if the stream is empty.
 * If any element matches the `Predicate`, then the `anyMatch` method will return `true`,  without applying the `Predicate` function on the remaining elements on the stream. 

# Syntax 

```
boolean anyMatch(Predicate<? super T> predicate)
```

# Parameter

`anyMatch` takes a `Predicate` function as an argument. 

# Return value 

* `true`: If at least one element in the stream matches the provided `Predicate`. 

* `false`: If all elements don't match the provided `Predicate`. 
  
# Code

import java.util.ArrayList;

class AnyMatchTest {
    public static void main( String args[] ) {
        ArrayList<Integer> numbers = new ArrayList<>();
        numbers.add(1);
        numbers.add(2);
        numbers.add(3);
        
        System.out.println("The numbers list is " + numbers);

        boolean hasNumber;
        hasNumber = numbers
                          .stream()
                          .anyMatch((number) -> number > 100 );
        System.out.println("Cheking if a number > 100 is present in list  - " + hasNumber);

        numbers.add(101);
        System.out.println("\nAdded 101 to the numbers list now the list is -  " + numbers);

        hasNumber = numbers
                          .stream()
                          .anyMatch((number) -> number > 100 );
        System.out.println("Cheking if a number > 100 is present in list  - " + hasNumber);

    }
}

# Explanation
In the code above, we: 

* Created an `ArrayList` with the elements: 

```
1,2,3
```

* From the `ArrayList`, we get the stream of the `ArrayList` through the `stream()` function. 

* Called the `anyMatch` method with a `Predicate` function. In the `Predicate` function, we checked if the value is `> 100`. The `anyMatch` method will loop through all the elements of the stream and test each element against the passed `Predicate` function.  In our case, no element matches the `Predicate` function because all the elements in the list are `< 100`. So, `false` is returned.

* Added a `101` value to the `ArrayList`, and called the `anyMatch` method on the `ArrayList`. Now the list contains one element (`101`) which matches the `Predicate` function. 
 In this case, the `anyMatch` method will return `true`.

What is the anyMatch() method of the Stream Interface?

Syntax

Parameter

Return value

Code

Explanation