public static void main(String[] args) {
int engishCount = 0;
int chineseCount = 0;
int digitCount = 0;
String str = "aaaabbc中国1512";
for(int i=0;i < str.length();i++)
{
char ch = str.charAt(i);
if(ch >= '0' && ch<='9') {
digitCount++;
}else if((ch >= 'a' && ch<='z') || (ch>='A' && ch<='Z')){
engishCount++;
}else{
chineseCount++;
}
}
System.out.println("digitCount"+digitCount+"engishCount"+engishCount+"chineseCount"+chineseCount);
}