List<Map<String,Object>几种遍历的方法
来源:互联网 发布:嵌入式软件开发实例 编辑:程序博客网 时间:2024/05/29 18:37
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class Test {
public static void main(String[] args) {
List<Map<String, Object>> listMaps = new ArrayList<Map<String, Object>>();
Map<String, Object> map1 = new HashMap<String, Object>();
map1.put("1", "a");
map1.put("2", "b");
map1.put("3", "c");
listMaps.add(map1);
Map<String, Object> map2 = new HashMap<String, Object>();
map2.put("11", "aa");
map2.put("22", "bb");
map2.put("33", "cc");
listMaps.add(map2);
for (Map<String, Object> map : listMaps) {
for (String s : map.keySet()) {
System.out.print(map.get(s) + " ");
}
}
System.out.println();
System.out.println("========================");
for (int i = 0; i < listMaps.size(); i++) {
Map<String, Object> map = listMaps.get(i);
Iterator iterator = map.keySet().iterator();
while (iterator.hasNext()) {
String string = (String) iterator.next();
System.out.println(map.get(string));
}
}
System.out.println("++++++++++++++++++++++++++++");
for (Map<String, Object> map : listMaps) {
for (Map.Entry<String, Object> m : map.entrySet()) {
System.out.print(m.getKey() + " ");
System.out.println(m.getValue());
}
}
System.out.println("-----------------------------");
}
}
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class Test {
public static void main(String[] args) {
List<Map<String, Object>> listMaps = new ArrayList<Map<String, Object>>();
Map<String, Object> map1 = new HashMap<String, Object>();
map1.put("1", "a");
map1.put("2", "b");
map1.put("3", "c");
listMaps.add(map1);
Map<String, Object> map2 = new HashMap<String, Object>();
map2.put("11", "aa");
map2.put("22", "bb");
map2.put("33", "cc");
listMaps.add(map2);
for (Map<String, Object> map : listMaps) {
for (String s : map.keySet()) {
System.out.print(map.get(s) + " ");
}
}
System.out.println();
System.out.println("========================");
for (int i = 0; i < listMaps.size(); i++) {
Map<String, Object> map = listMaps.get(i);
Iterator iterator = map.keySet().iterator();
while (iterator.hasNext()) {
String string = (String) iterator.next();
System.out.println(map.get(string));
}
}
System.out.println("++++++++++++++++++++++++++++");
for (Map<String, Object> map : listMaps) {
for (Map.Entry<String, Object> m : map.entrySet()) {
System.out.print(m.getKey() + " ");
System.out.println(m.getValue());
}
}
System.out.println("-----------------------------");
}
}
打印的结果:
c b a bb cc aa
========================
c
b
a
bb
cc
aa
++++++++++++++++++++++++++++
3 c
2 b
1 a
22 bb
33 cc
11 aa
-----------------------------
- List<Map<String,Object>几种遍历的方法
- List<Map<String,Object>几种遍历的方法
- java List<Map<String,Object>遍历的方法
- 遍历List<Map<String, Object>>
- List<Map<String,Object>> 遍历
- 遍历List<Map<String,Object>>
- List<map<String,Object>>java遍历
- jsp页面遍历List<Map<String,Object>>
- jsp遍历List<Map<String,Object>>,输出<Map<String,Objectr>>
- List<Map>的几种遍历方式
- List<Map<String,Object>>使用Java代码遍历以获取String,Object的值
- List<Map<String,Object>>使用Java代码遍历以获取String,Object的值 .
- List<Map<String,Object>>使用Java代码遍历以获取String,Object的值
- List<Map<String,Object>>使用Java代码遍历以获取String,Object的值
- List<Map<String,Object>>使用Java代码遍历以获取String,Object的值
- List<Map<String,Object>>使用Java代码遍历以获取String,Object的值
- List<Map<String,Object>>如何使用Java代码遍历以获取String,Object的值
- List<Map<String,Object>>使用Java代码遍历以获取String,Object的值
- [LeetCode] Edit Distance
- ArcEngine开发之Command控件使用篇
- R语言中的attach()和detach()函数
- 2013第三周上机任务【项目三 长方体类】
- nGrinder-世界上最简单但潜力无限的压力工具
- List<Map<String,Object>几种遍历的方法
- JS最佳实践
- 第二周 项目三 用结构体数据做运算
- LinkedHashMap和HashMap的比较使用 由于现在项目中用到了LinkedHashMap,并不是太熟悉就到网上搜了一下。 ? import java.util.HashMap; impo
- TD SCDMA里的CELL_FACH、CELL_DCH、CELL_PCH
- hdu 1080 Human Gene Functions( 带权值的最长公共子序列)
- CString之GetBuffer()
- HelloWorldScene解析
- Visual C++ 6.0的常用快捷键(来自EmanLee, Eman Lee's Space )