获取Java LinkedHashMap的大小
该size()方法用于获取Java中LinkedHashMap的大小。
创建一个LinkedHashMap并向其中添加一些元素-
LinkedHashMap<String,String> l = new LinkedHashMap<String,String>();
l.put("1", "Jack");
l.put("2", "Tom");
l.put("3", "Jimmy");
l.put("4", "Morgan");
l.put("5", "Tim");
l.put("6", "Brad");现在获取大小-
l.size()
以下是获取LinkedHashMap大小的示例-
示例
import java.util.LinkedHashMap;
public class Demo {
public static void main(String[] args) {
LinkedHashMap<String,String> l = new LinkedHashMap<String,String>();
l.put("1", "Jack");
l.put("2", "Tom");
l.put("3", "Jimmy");
l.put("4", "Morgan");
l.put("5", "Tim");
l.put("6", "Brad");
System.out.println("LinkedHashMap elements: "+l);
System.out.println("Size = "+l.size());
}
}输出结果
LinkedHashMap elements: {1=Jack, 2=Tom, 3=Jimmy, 4=Morgan, 5=Tim, 6=Brad}
Size = 6