时间:2008-08-27 12:01:38   来源:论坛整理  作者:  编辑:chinaitzhe

public class CTest3 {
public CTest3() {

}

public void get(String str) {

String tem = str.toString();

char s[] = tem.toCharArray();

Map map = new TreeMap();

for (int i = 0; i < s.length; i ) {
int cout = 0;
for (int j = 0; j < s.length; j ) {
if ( ' ' != s[i] && s[i] == s[j]) {
cout ;
}
}

if ( ' ' != s[i]) {
map.put(s[i], cout);
}

}

Iterator it = map.keySet().iterator();

while (it.hasNext()) {
Object key = it.next();
System.out.print(key "( " map.get(key) ") ");
}

}

public String inputString() {
String str = null;
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
if (str == null || " ".equals(str)) {
try {
str = br.readLine();
} catch (IOException e) {
// TODO 自动生成 catch 块
e.printStackTrace();
}
}
return str;
}

public static void main(String[] args) {

CTest3 test3 = new CTest3();

test3.get(test3.inputString());

}

}


结果：
www aaa bbssddcc SS
S(2)a(3)b(2)c(2)d(2)s(2)w(3)

我想这个大写的S(2)排在后面
网友回复:my %hash;
foreach (@s){
$hash{%_} = 1;
}
foreach my $key (sort keys %hash) {
print "$key => $hash{$key}\n ";
}
网友回复:public class CTest3 {
public CTest3() {

}

public void get(String str) {

String tem = str.toString();

char s[] = tem.toCharArray();

Map <Character, Integer> map = new TreeMap <Character, Integer> ();

for (int i = 0; i < s.length; i ) {
int cout = 0;
for (int j = 0; j < s.length; j ) {
if ( ' ' != s[i] && s[i] == s[j]) {
cout ;
}
}

if ( ' ' != s[i]) {
map.put(s[i], cout);
}

}

Iterator it = map.keySet().iterator();


while (it.hasNext()) {

Character ch = (Character) it.next();

char c = ch.charValue();

if (c > = 'a ') {

System.out.print(ch "( " map.get(ch) ") ");
}

}

it = map.keySet().iterator();

while (it.hasNext()) {

Character ch = (Character) it.next();

char c = ch.charValue();

if (c > = 'a ') {

break;
}

System.out.print(ch "( " map.get(ch) ") ");

}

}

public String inputString() {
String str = null;
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
if (str == null || " ".equals(str)) {
try {
str = br.readLine();
} catch (IOException e) {
// TODO 自动生成 catch 块
e.printStackTrace();
}
}
return str;
}

public static void main(String[] args) {

CTest3 test3 = new CTest3();

test3.get(test3.inputString());

}

}
网友回复:www WWW ddd ddDDD aaa aAAAA bbb cCCbbbVVBB
a(4)b(6)c(1)d(5)w(3)A(4)B(2)C(2)D(3)V(2)W(3)
网友回复:String str = "saDagra235haeAghr452yjh ";
char[] c = str.toCharArray();
Set <Character> s = new HashSet <Character> ();
for(char c1 : c){
s.add(new Character(c1));
}

Character[] ss = s.toArray(new Character[0]);

Arrays.sort(ss);
for (int i = 0; i <ss.length; i ){
System.out.print (ss[i]);
int count = 0;
for (int j = 0; j <c.length; j ){
if(ss[i] == c[j]){
count ;
}
}

System.out.println( "的字符数是： " count);
System.out.println ( "-------------- ");
}
网友回复:2的字符数是：2
--------------
3的字符数是：1
--------------
4的字符数是：1
--------------
5的字符数是：2
--------------
A的字符数是：1
--------------
D的字符数是：1
--------------
a的字符数是：4
--------------
e的字符数是：1
--------------
g的字符数是：2
--------------
h的字符数是：3
--------------
j的字符数是：1
--------------
r的字符数是：2
--------------
s的字符数是：1
--------------

要a-z 然后A-Z

这个结果是A-Z然后a-z 不符合要求