public class ex3{ public static void main(String [] args){ char a='2';   String b=" Home sweet homea";   char c=b.charAt(1);//=Н     String d=(b.endsWith("a"))?"var b ends with a":"var b not ends with a";     String e=b.substring(5);     String f=b.toLowerCase();     String g=b.toUpperCase();     String h=b.trim();//убрать пробелы вокруг выражения     System.out.println("a = " + a);   System.out.println("b = " + b);   System.out.println("c = " + c);   System.out.println("d = " + d);   System.out.println("e = " + e);   System.out.println("g = " + g);   System.out.println("h = " + h); } }