package zuoye2;

public class zuoye1 {

public static void main(String[] args) {

a();

}

public static void a(){

String a1="asdaa12112ADSJADY";

byte[] b=a1.getBytes();

int q=0;

int q1=0;

int q2=0;

for(int i=0;i<b.length;i++){

int c=b[i];

if(97<=c&&c<=122){

q++;

}

if(65<=c&&c<=90){

q1++;

}

if(48<=c&&c<=57){

q2++;

}

}

System.out.println("内容为"+a1);

System.out.println("大写个数"+q);

System.out.println("小写个数"+q1);

System.out.println("数字个数"+q2);

}

}