yo, so im trying to make a program that can take string input from the user for instance: "ONCE UPON a time" and then report back how many upper and lowercase letters the string contains:
output example: the string has 8 uppercase letters the string has 5 lowercase letters, and im supposed to use string class not arrays, any tips on how to get started on this one? thanks in advance, here is what I have done so far :D!
import java.util.Scanner;
public class q36{
public static void main(String args[]){
Scanner keyboard = new Scanner(System.in);
System.out.println("Give a string ");
String input=keyboard.nextLine();
int lengde = input.length();
System.out.println("String: " + input + "\t " + "lengde:"+ lengde);
for(int i=0; i<lengde;i++) {
if(Character.isUpperCase(CharAt(i))){
}
}
}
}
Simply create counters that increment when a lowercase or uppercase letter is found, like so:
for (int k = 0; k < input.length(); k++) {
/**
* The methods isUpperCase(char ch) and isLowerCase(char ch) of the Character
* class are static so we use the Class.method() format; the charAt(int index)
* method of the String class is an instance method, so the instance, which,
* in this case, is the variable `input`, needs to be used to call the method.
**/
// Check for uppercase letters.
if (Character.isUpperCase(input.charAt(k))) upperCase++;
// Check for lowercase letters.
if (Character.isLowerCase(input.charAt(k))) lowerCase++;
}
System.out.printf("There are %d uppercase letters and %d lowercase letters.",upperCase,lowerCase);