Java Deque.contains(Object o)
Syntax
Deque.contains(Object o) has the following syntax.
boolean contains(Object o)
Example
In the following code shows how to use Deque.contains(Object o) method.
/*w ww .j a v a2 s. co m*/
import java.util.ArrayDeque;
import java.util.Deque;
public class Main {
public static void main(String[] args) {
Deque<Integer> deque = new ArrayDeque<Integer>(8);
deque.add(20);
deque.add(30);
deque.add(10);
deque.add(18);
System.out.println(deque);
// deque contains element 10
boolean retval = deque.contains(10);
if (retval == true) {
System.out.println("element 10 is contained in the deque");
} else {
System.out.println("element 10 is not contained in the deque");
}
}
}
The code above generates the following result.
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