Java Exercise: Specify the number of uppercase, lowercase, and other characters in the specified string.

Tag:uppercase    number    ++   str    string     stat   api   abc    practice    

/*public class test1{public static void Main (String[]args) {String s = "abcdeEFHDKEI38475";        Char a[] = S.tochararray ();        int lower = 0,upper = 0,other = 0;            for (int i=0; i<a.length; i++) {if (a[i]<= ' z ' && a[i]>= ' a ') lower++;            else if (a[i]<= ' Z ' && a[i]>= ' a ') upper++;        else other++;             } System.out.println (lower);             SYSTEM.OUT.PRINTLN (upper);    System.out.println (other);        }}*//*public class test1{public static void Main (String[]args) {String s = "abcdeEFHDKEI38475";        int lower = 0,upper = 0,other = 0;            for (int i=0; i<s.length; i++) {char c = s.charat (i);            if (c<= ' z ' && c>= ' a ') lower++;            else if (c <= ' Z ' && C >= ' A ') upper++;        else other++; } SyStem.out.println (lower);             SYSTEM.OUT.PRINTLN (upper);    System.out.println (other);        }}*//*public class test1{public static void Main (String[]args) {String SL = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";        String SU = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";        String s = "abcdeEFHDKEI38475";        int lower = 0,upper = 0,other = 0;            for (int i=0; i< s.length (); i++) {char c = s.charat (i);            if (Sl.indexof (c)! =-1) lower++;            else if (Su.indexof (c)! =-1) upper++;        else other++;             } System.out.println (lower);             SYSTEM.OUT.PRINTLN (upper);    System.out.println (other);        }}*/public class test1{public static void Main (String[]args) {String SL = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";        String SU = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";        String s = "abcdeEFHDKEI38475";        int lower = 0,upper = 0,other = 0; for (int i=0; i< s.length ();            i++) {char c = s.charat (i);            if (Character.islowercase (c)) lower++;            else if (Character.isuppercase (c)) upper++;        else other++;             } System.out.println (lower);             SYSTEM.OUT.PRINTLN (upper);    System.out.println (other); }}

Key idea: Extract each character in the string and compare it. See the Java API documentation for details. Https://docs.oracle.com/javase/8/docs/api/index.html

Java Exercise: Specify the number of uppercase, lowercase, and other characters in the specified string.