修改README.txt文件

完成项目4

Author: zpf2012

Exam04/README.txt

@@ -1 +1,2 @@
-未完成
+#未完成
+mvn exec:java -Dexec.mainClass="pkg04.Test04" 

Exam04/src/main/java/pck04/Test04.java

@@ -9,25 +9,88 @@
 import java.util.Random;
 import java.util.Set;
 
+import org.w3c.dom.Element;
+
 public class Test04 {
 
 	public static void main(String[] args) {
+		Test04 t4 = new Test04();
 		List<Integer> list = new ArrayList<Integer>();
 		Map<Integer, List<Integer>> map = new HashMap<Integer, List<Integer>>();
 
-		Collection<List<Integer>> value = map.values();	
-		Iterator<List<Integer>> li = value.iterator();	
-		
 		int temp = 0;
-		Set<Integer> set = map.keySet();
+//	生成50个随机数
 		for(int i = 0; i < 50; i ++){
 			list.add(new Random().nextInt(100));
 		}
+		System.out.println("随机生成的50个小于一百的数为：");
+		for(int k = 0; k < list.size();k++){
+			System.out.print(list.get(k)+",");
+		}
+		System.out.println();
+//	将随机生成的50个数分组放入map中	
+		for(int n = 0; n < 10; n++){
+			List<Integer> list2 = new ArrayList<Integer>();			
+			for(int j = 0; j < list.size(); j++){
+				temp = list.get(j) / 10;
+				if(n == temp){
+					list2.add(list.get(j));
+				}
+			}
+			map.put(Integer.valueOf(n), list2);
+		}
+	
+//	读取排序前的map
+		
+		System.out.println(map);
+//		读取map的value值进行排序
+		
+		
+//	读取排序后的map
+		Map<Integer, List<Integer>> new_map = new HashMap<Integer, List<Integer>>();
 
-		for(int j = 0; j < 50; j++){
-			temp = list.get(j) / 10;
-			map.put(new Integer(temp), arr[list.get(j)]);
+		Collection<List<Integer>> value = map.values();	
+		Iterator<List<Integer>> li = value.iterator();		
+				
+		Set<Integer> key= map.keySet();
+		Iterator<Integer> iter = key.iterator();
+		for(int i = 0; i < value.size();i++){
+			int key1 = 0;
+			while (iter.hasNext()) {
+				key1 = iter.next();
+				break;
+			}
+			while (li.hasNext()) {
+				new_map.put(key1, t4.sort(li.next()));
+//				System.out.println(li.next());
+				break;
+			}
+		}
+		
+		System.out.println(new_map);
+		
+	}
+//  排序方法
+	public List<Integer> sort(List<Integer> list){
+		List<Integer> list3 = new ArrayList<Integer>();
+		Integer [] arr = new Integer [list.toArray().length];
+//	将传入的list转换为数组，因为toArray()得到的为Object[]对象，所以需要将Object[]转为Integer[]
+		for(int k = 0; k < list.toArray().length; k++){  
+		    arr[k] = Integer.parseInt(list.toArray()[k].toString());  
+		}
+		for(int i = 0 ; i < arr.length;i++){
+			for(int j = i+1; j < arr.length; j++){
+				if(arr[i] > arr [j]){
+					int temp = arr[i];
+					arr[i] = arr[j];
+					arr[j] = temp;
+				}
+			}
+		}
+		for(int m = 0; m < arr.length;m++){
+			list3.add(arr[m]);
 		}
+		return list3;
 	}
 
 }