int engishCount;
int chineseCount;
int digitCount;
for(int i=0;i<str.length;i++){
charch = 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(……………);
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