The beginning of Java quest to determine if a string of characters entered is all lowercase letters

Import Java.io.ioexception;import java.util.*;p Ublic Class A {public static void main (string[] args) throws IOException {Scanner sc=new Scanner (system.in); System.out.println ("Please enter a string"); String Str=sc.nextline (); boolean a=true;for (int i=0;i<str.length (); i++) {char c=str.charat (i); if ( Character.islowercase (c)) Continue;else{a=false;break;}} if (a==false) System.out.println ("This string is not all lowercase letters"), ElseSystem.out.println ("This string is all lowercase");}}

Experience  to learn to use Java API ...

The lesson  length is the method of character the character function inside the class  Chartat the method of judging the  position of the character inside the character class.

Boolean  fixed value is true or False

The beginning of Java quest to determine if a string of characters entered is all lowercase letters