java object indexof
Assuming that the Circle and Triangle classes extend Shape , you could try this: List<Shape> lst = new ArrayList<Shape>(); Shape c1 = new Circle(); Shape t1 ... ,I think you can solve it in one line using the map function: pos = myArray.map(function(e) return e.hello; }).indexOf('stevie');.
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 java object indexof 相關參考資料
How to search custom obiects using .indexOf() in an ArrayList in ...
In java, any object hashCode is an integer, hashCode() of Object Class ... object whose location in the arraylist you are looking for as the input into the indexOf(). https://www.quora.com indexOf for the objects of the ArrayList in java - Stack Overflow
Assuming that the Circle and Triangle classes extend Shape , you could try this: List<Shape> lst = new ArrayList<Shape>(); Shape c1 = new Circle(); Shape t1 ... https://stackoverflow.com indexOf method in an object array? - Stack Overflow
I think you can solve it in one line using the map function: pos = myArray.map(function(e) return e.hello; }).indexOf('stevie');. https://stackoverflow.com indexOf() will not find a custom object type - Stack Overflow
You haven't overridden the equals method on your point class, so it's using the default implementation in java.lang.Object, which compares the ... https://stackoverflow.com indexOf(Object elem,int index)方法實例- Java.util包 - 極客書
這是之前的indexOf（） 方法的另一變體。唯一的區彆是，在搜索給定參數的第一次出現開始於提到的第二個參數的索引位置。 Declaration 以下是java.util.Vector. http://tw.gitbook.net Java ArrayList IndexOf - Finding Object Index - Stack Overflow
The indexOf() method does go through the entire list. Here's an excerpt from Java 7 source code: public int indexOf(Object o) if (o == null) for ... https://stackoverflow.com Java.util.ArrayList.indexOf()方法實例- Java.util包 - 極客書
java.util.ArrayList.indexOf(Object) 方法返回指定元素的第一個匹配項的索引在此列表中，或者-1，如果此列表中不包含該元素。 Declaration 以下是java.util.ArrayList. http://tw.gitbook.net Java.util.ArrayList.indexOf(Object) Method Example - Tutorialspoint
Description. The java.util.ArrayList.indexOf(Object) method returns the index of the first occurrence of the specified element in this list, or -1 if this list does not ... https://www.tutorialspoint.com 。: ［JAVA］ArrayList < Custom Object >，使用indexOf 的方法。 (Override ...
在JAVA 的ArrayList 中，indexOf 實在是非常便利的method。 但是，如果放在ArrayList 的Element Object 不是String、Integer 之類的的話。 http://mathbookpeace.blogspot. 自定义对象ArrayList的indexOf用法- oHeHeHou的专栏- CSDN博客
今天做项目的时候碰到一个功能需要使用ArrayList的indexOf .... 的时候注意，如果自定义兑现没有重写equals方法，将使用默认的Object中的equals方法。 ... Java中字符串中子串的查找共有四种方法(indexof())indexOf方法返回一个 ... https://blog.csdn.net |