Java counts the letters Spaces Numbers and others of input characters
- 2020-06-12 09:02:58
- OfStack
Enter 1 line of characters and count the number of letters, Spaces, Numbers and other characters.
Program analysis: using while statement, the condition is that the input character is not '\n '.
Program design:
import java.util.Scanner;
public class ex7 {
public static void main(String args[])
{
System.out.println(" Please enter the string: ");
Scanner scan=new Scanner(System.in);
String str=scan.next();
String E1="[\u4e00-\u9fa5]";
String E2="[a-zA-Z]";
int countH=0;
int countE=0;
char[] arrChar=str.toCharArray();
String[] arrStr=new String[arrChar.length];
for (int i=0;i<arrChar.length ;i++ )
{
arrStr[i]=String.valueOf(arrChar[i]);
}
for (String i: arrStr )
{
if (i.matches(E1))
{
countH++;
}
if (i.matches(E2))
{
countE++;
}
}
System.out.println(" Number of Chinese characters "+countH);
System.out.println(" Number of letters "+countE);
}
}