Recommend 10 arrays to obtain special effects (collection)

The following example demonstrates how to find the maximum and minimum values ​​in an array through the Collection.max() and Collection.min() methods of the Collection class: /* author by w3cschool.cc File name: Main.java */import java.util.Arrays;import java.util.Collections;public class Main { public static void main(String[] args) { Integer[] numbers =

1. Java Example - Array Gets the Maximum and Minimum Value

Introduction: The following example demonstrates how to find the maximum and minimum values ​​in an array through the Collection.max() and Collection.min() methods of the Collection class:

2. php multi-dimensional array acquisition problem, beginners

Introduction: {code...} I want to get array(1,2,3, 4,5); How to obtain the value in this one-dimensional array? I obtained it like this: $array[0] But it doesn't work. I think Java and C seem to be able to do it. I am a beginner in PHP, and I am currently trying my best to transfer from front-end to back-end;

3. After foreach, loop the multi-dimensional array to obtain the courier name, and assign the value to the front-end

Introduction: {Code...}

4. php array to get the parent node

Introduction: For example, an array includes place names. If you already know Shijiazhuang, how do you know its superior Hebei? Or if you already know Beijing, how do you know its superior China

5. php array acquisition

Introduction: One two three is an array. If you put the following numbers into it, put the last 10 numbers into 1

6. php two-digit array to get duplicate elements

Introduction:``` $arr = array( array('0001','0002'), array('0001','0002','0003'), array(' 0001','0002','0003','0005'), array('0001','0002','1003','0005'), ); `

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