设计一个类Storage，包括一个void insert(String[] arr)方法，可多次调用该方法，将数据存入集合中，void search(String s)方法，可以将集合中包含s的数据输出，用逗号间隔
例如:
| 测试 | Result |
|---|---|
Storage storage=new Storage();
String[] arr1={"hello","upc","good","eat","tall","java","math"};
storage.insert(arr1);
String[] arr2={"swim","travel","sing","run","bike","car"};
storage.insert(arr2);
storage.search("s"); | swim,sing |
解题思路：
需要设计一个Storage类，包含insert和search方法
insert方法用于将数据存入集中；
search方法用于将集合中包含特定字符串s的数据输出，并根据情况用逗号间隔；
首先构造集合存储字符串
private List<String> data = new ArrayList<>();然后是insert方法实现思路
void insert(String[] arr){for(String s:arr){data.add(s);} }遍历
arr数组，将数组中的每个字符串元素添加到data（ArrayList）中。search方法实现：
s作为搜索关键字，遍历data中的每个字符串，根据found的状态决定是否添加“，”
void search(String s) {int found = 0;for (String str : data) {if (str.contains(s)) {if (found == 0) {System.out.print(str);found = 1;} else {System.out.print("," + str);}}} }
import java.util.ArrayList;
import java.util.List;class Storage{private List<String> data = new ArrayList<>();void insert(String[] arr){for(String s:arr){data.add(s);}}void search(String s) {int found = 0;for (String str : data) {if (str.contains(s)) {if (found == 0) {System.out.print(str);found = 1;} else {System.out.print("," + str);}}}}
}
public class Test {public static void main(String[] args) {Storage storage = new Storage();String[] arr1 = {"hello", "upc", "good", "eat", "tall", "java", "math"};String[] arr2 = {"swim", "travel", "sing", "run", "bike", "car"};storage.insert(arr1);storage.insert(arr2);storage.search("s");}
}
