请先看代码
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int i=0, n=1,ab=0,bb=0,cb=0,db=0,eb=0,fb=0,gb=0,hb=0,ib=0,jb=0,kb=0,lb=0,mb=0,nb=0,ob=0,pb=0,qb=0,rb=0,sb=0,tb=0,ub=0,vb=0,wb=0,xb=0,yb=0,zb=0;
System.out.println("请输入您的字符串，以整个单词或字母等组合为一个单位");
System.out.print("请输入第一个字符串：");
String[] str = new String[n];
for(int a = 0; a < n; a++)
{
String str1 = scan.next();
str[i] = str1;
System.out.print("是否输入完毕?请输入yes/no:");
String str2 = scan.next();
if( str2.equals( "yes") )
{
break ;
}
else
{
i++;
n++;
System.out.print("请输入下一个字符串：");
}
}
for( i = 0; i < str.length; i++ )
{
if(str[i].matches("a|A")){
ab++;
}
else if(str[i].matches("b|B")){
bb++;
}
else if(str[i].matches("c|C")){
cb++;
}
else if(str[i].matches("d|D")){
db++;
}
else if(str[i].matches("e|E")){
eb++;
}
else if(str[i].matches("f|F")){
fb++;
}
else if(str[i].matches("g|G")){
gb++;
}
else if(str[i].matches("h|H")){
hb++;
}
else if(str[i].matches("i|I")){
ib++;
}
else if(str[i].matches("j|J")){
jb++;
}
else if(str[i].matches("k|K")){
kb++;
}
else if(str[i].matches("l|L")){
lb++;
}
else if(str[i].matches("m|M")){
mb++;
}
else if(str[i].matches("n|N")){
nb++;
}
else if(str[i].matches("o|O")){
ob++;
}
else if(str[i].matches("p|P")){
pb++;
}
else if(str[i].matches("q|Q")){
qb++;
}
else if(str[i].matches("r|R")){
rb++;
}
else if(str[i].matches("s|S")){
sb++;
}
else if(str[i].matches("t|T")){
tb++;
}
else if(str[i].matches("u|U")){
ub++;
}
else if(str[i].matches("v|V")){
vb++;
}
else if(str[i].matches("w|W")){
wb++;
}
else if(str[i].matches("x|X")){
xb++;
}
else if(str[i].matches("y|Y")){
yb++;
}
else if(str[i].matches("z|Z")){
zb++;
}
}
System.out.println("您的字符串为：");
for(i = 0; i < str.length; i++)
{
System.out.print(str[i] +" ");
}
System.out.print("\n您的字符串中个数\n"+"a："+ ab +" b：" + bb +" c："+ cb +" d："+ db +" e："+ eb +" f："+ fb +" g："+ gb +" h："+ hb +" i："+ ib +" j："+ jb +" k："+ kb +" l："+ lb +" m："+ mb +" n："+ nb +" o："+ ob+" p："+ pb +" q："+ qb +" r："+ rb +" s："+ sb +" t："+ tb +" u："+ ub +" v："+ vb +" w："+ wb +" x："+ xb +" y："+ yb +" z："+ zb);
}
}
怎么实现对数组内字符串内的单个字母判断个数？我的这个结果每个都是0，我要怎么改？
------解决思路----------------------
str[i]是一个以字符串为元素的数组，每输入一个字符串，就会当做一个元素存入数组内！当判断是否含有某个字母时，对照的对象是输入的字符串，而不是字母，当然结果是零！你输入一个字母当做字符串，就会有结果了！
------解决思路----------------------
import java.util.*;
public class test_1
{
public static void main(String[] args)
{
Scanner scan = new Scanner(System.in);
int i=0, n=1,ab=0,bb=0,cb=0,db=0,eb=0,fb=0,gb=0,hb=0,ib=0,jb=0,kb=0,lb=0,mb=0,nb=0,ob=0,pb=0,qb=0,rb=0,sb=0,tb=0,ub=0,vb=0,wb=0,xb=0,yb=0,zb=0;
System.out.println("请输入您的字符串，以整个单词或字母等组合为一个单位");
System.out.print("请输入第一个字符串：");
String[] str = new String[n];
for(int a = 0; a < n; a++)
{
String str1 = scan.next();
str[i] = str1;
System.out.print("是否输入完毕?请输入yes/no:");
String str2 = scan.next();
if( str2.equals( "yes") )
{
break ;
}
else
{
i++;
n++;
System.out.print("请输入下一个字符串：");
}
}
for( i = 0; i < str.length; i++ )
{
for(int j=0;j<str[i].length();j++)
{
char char_=str[i].charAt(j);
if(char_=='a'
------解决思路----------------------
char_=='A')
{
ab++;
}
if(char_=='b'
------解决思路----------------------
char_=='B')
{
bb++;
}
if(char_=='c'
------解决思路----------------------
char_=='C')
{
cb++;
}
if(char_=='d'
------解决思路----------------------
char_=='D')
{
db++;
}
if(char_=='e'
------解决思路----------------------
char_=='E')
{
eb++;
}
if(char_=='f'
------解决思路----------------------
char_=='F')
{
fb++;
}
if(char_=='g'
------解决思路----------------------
char_=='G')
{
gb++;
}
if(char_=='h'
------解决思路----------------------
char_=='H')
{
hb++;
}
if(char_=='i'
------解决思路----------------------
char_=='I')
{
ib++;
}
if(char_=='j'
------解决思路----------------------
char_=='J')
{
jb++;
}
if(char_=='k'
------解决思路----------------------
char_=='K')
{
kb++;
}
if(char_=='l'
------解决思路----------------------
char_=='L')
{
lb++;
}
if(char_=='m'
------解决思路----------------------
char_=='M')
{
mb++;
}
if(char_=='n'
------解决思路----------------------
char_=='N')
{
nb++;
}
if(char_=='o'
------解决思路----------------------
char_=='O')
{
ob++;
}
if(char_=='p'
------解决思路----------------------
char_=='P')
{
pb++;
}
if(char_=='q'
------解决思路----------------------
char_=='Q')
{
qb++;
}
if(char_=='r'
------解决思路----------------------
char_=='R')
{
rb++;
}
if(char_=='s'
------解决思路----------------------
char_=='S')
{
sb++;
}
if(char_=='t'
------解决思路----------------------
char_=='T')
{
tb++;
}
if(char_=='u'
------解决思路----------------------
char_=='U')
{
ub++;
}
if(char_=='v'
------解决思路----------------------
char_=='V')
{
vb++;
}
if(char_=='w'
------解决思路----------------------
char_=='W')
{
wb++;
}
if(char_=='x'
------解决思路----------------------
char_=='X')
{
xb++;
}
if(char_=='y'
------解决思路----------------------
char_=='Y')
{
yb++;
}
if(char_=='z'
------解决思路----------------------
char_=='Z')
{
zb++;
}
}
}
System.out.println("您的字符串为：");
for(i = 0; i < str.length; i++)
{
System.out.print(str[i] +" ");
}
System.out.print("\n您的字符串中个数\n"+"a："+ ab +" b：" + bb +" c："+ cb +" d："+ db +" e："+ eb +" f："+ fb +" g："+ gb +" h："+ hb +" i："+ ib +" j："+ jb +" k："+ kb +" l："+ lb +" m："+ mb +" n："+ nb +" o："+ ob+" p："+ pb +" q："+ qb +" r："+ rb +" s："+ sb +" t："+ tb +" u："+ ub +" v："+ vb +" w："+ wb +" x："+ xb +" y："+ yb +" z："+ zb);
}
}