import java.util.Iterator;
import java.util.TreeMap;public class ContainerTest1 {
TreeMap<Integer,Integer>tmp = new TreeMap<Integer,Integer>();
Iterator<Integer> itr;
public static void main(String[] args) {
new ContainerTest1(); }
public ContainerTest1(){
tmp.put(2, 3);
tmp.put(4, 3);
tmp.put(1, 3);
tmp.put(7, 3);
tmp.put(2, 6);
tmp.put(2, 4);
tmp.put(3, 1);
itr = tmp.keySet().iterator();
while(itr.hasNext()){
int key = itr.next();
int value = tmp.get(key);
System.out.println("key"+key+"value"+value);
}
}
}
为什么我得到的结果是key1value3
key2value4
key3value1
key4value3
key7value3而我想得到所有的键值
import java.util.TreeMap;public class ContainerTest1 {
TreeMap<Integer,Integer>tmp = new TreeMap<Integer,Integer>();
Iterator<Integer> itr;
public static void main(String[] args) {
new ContainerTest1(); }
public ContainerTest1(){
tmp.put(2, 3);
tmp.put(4, 3);
tmp.put(1, 3);
tmp.put(7, 3);
tmp.put(2, 6);
tmp.put(2, 4);
tmp.put(3, 1);
itr = tmp.keySet().iterator();
while(itr.hasNext()){
int key = itr.next();
int value = tmp.get(key);
System.out.println("key"+key+"value"+value);
}
}
}
为什么我得到的结果是key1value3
key2value4
key3value1
key4value3
key7value3而我想得到所有的键值
Iterator<Integer>itr ;
IdentityHashMap<Integer,Integer> tmp2 = new IdentityHashMap<Integer,Integer>();
int []temp = new int[10];
{......tmp2.put();}
itr = tmp2.keySet().iterator();
while(itr.hasNext()){
Object sos = itr.next();
value = tmp2.get(sos);
System.out.println("sos"+sos+"value"+value);
sos1 = sos.hashCode();
arr.add(sos1);
}
for(int i=0;i<arr.size();i++){
temp[i] = arr.get(i);
}
int temp2;
for(int i=0;i<temp.length;i++){
for(int j=0;j<temp.length-i-1;j++){
if(temp[j]>temp[j+1]){
temp2 = temp[j+1];
temp[j+1] = temp[j];
temp[j] = temp2;
}
}
}
for(int i=0;i<temp.length;i++){
System.out.println("temp[i]"+temp[i]);//这里是有值的
System.out.println("value1"+tmp2.get(temp[i]));//不知道为什么我这里打印出来的值为空
}
import java.io.*;public class Sound
{
public static void main(String args[])
{
try {
FileInputStream fileau=newFileInputStream("D:\\Javawork\\Study\\bin\\csdn\\sounds\\Sleep.wav");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
}
catch (Exception e) {}
}
}