What does shuffle mean in java?
The shuffle function in Java can be implemented through the Collections.shuffle(List> list) method, which scrambles the order of elements in the specified list so that it has an unpredictable order. Usage: Import the Collections class, call the shuffle method, and pass the collection to be shuffled as a parameter.
shuffle in Java
In Java, shuffle
is a shuffled collection The process of element ordering. This is typically used to create random lists or perform random selections.
The shuffle
function in Java can be implemented through theCollections.shuffle(List> list) method accomplish. This method rearranges the elements in the specified list in random order, giving them an unpredictable order.
Usage
To shuffle a Java collection, you can perform the following steps:
Import
java.util.Collections- kind.
-
Call the
shuffle method and pass the collection to be shuffled as a parameter. -
For example:
import java.util.Collections; import java.util.ArrayList; public class Main { public static void main(String[] args) { // 创建一个字符串列表 ArrayList<String> list = new ArrayList<>(); list.add("Java"); list.add("Python"); list.add("C++"); // 打乱列表中的元素 Collections.shuffle(list); // 打印打乱后的列表 System.out.println(list); } }
<code>[C++, Python, Java]</code>
Note
##shuffle
Method will change the order of the original collection.- Random number generation in Java is pseudo-random, which means it is generated by an algorithm rather than a true source of randomness.
You can also use other libraries or custom algorithms to implement the shuffle function.
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