java.util.ArrayList.contains(Object) method

描述 The java.util.ArrayList.contains(Object) method returns true if this list contains the specified element. 声明 Following is the declaration for java.util.ArrayList.contains() method public boolean contains(Object o) 参数 o -- The element whose presence in this list is to be tested. 返回值 This method returns true if this list contains the specified element. 异常 NA   实例一编辑+分享实例 以下例子将告诉你如何使用 java.util.Arraylist.contains method. package yiibai.com; import java.util.ArrayList; public class ArrayListDemo {    public static void main(String[] args) {              // create an empty array list with an initial capacity       ArrayListarrlist = new ArrayList