How do I know if an ArrayList contains a specified item?
Category: java.util, viewed: 52K time(s).
To check if an ArrayList object contains a specified element we can use the contains method. This method returns true when the specified element is found in the ArrayList.
package org.kodejava.example.util;
import java.util.ArrayList;
import java.util.List;
public class ArrayListContains {
public static void main(String[] args) {
List<String> list = new ArrayList<String>();
list.add("Item 1");
list.add("Item 2");
list.add("Item 3");
list.add("Item 4");
if (list.contains("Item 1")) {
System.out.println("True");
} else {
System.out.println("False");
}
}
}