Question

I am trying to run a couple of functions in my main and It won't output anything if there is anything that you see wrong please help me out. I have to use simple, sometimes slower ways because we can use what we haven't learned yet. Here is my code.

package a3;

import java.util.Scanner;

public class LoopsAndImages {

public static void main(String[] args){

String test = "A rabbit has a carrot";

Boolean numbers = hasMoreEvenThanOdd("12344");

System.out.println(test);

System.out.println(hideLetterA(test)+" This is the new string");

System.out.println(numbers);

System.out.println(makeTextTriangle(5));

}

public static String hideLetterA(String sentence) {

Scanner s=new Scanner(sentence);

while(s.hasNext()) {

for(int i=0; i<sentence.length();i++) {

char c=sentence.charAt(i);

int charValue = (int) c;

if(charValue==65 || charValue==97) {

c='*';

}

}

}

s.close();

return sentence;

}

public static Boolean hasMoreEvenThanOdd(String sentence) {

int x=Integer.parseInt(sentence);

if((x%2)==0) {

return true;

}else {

return false;

}

}

public static String makeTextTriangle(int a) {

String stars="";

for(int i=0; i<a; i++) {

for(int j=0; j<i;j++) {

stars="* ";

}

System.out.println();

}

return stars;

}

}

Answer 1

package a3;

import java.util.Scanner;

public class LoopsAndImages {
    public static void main(String[] args) {
        String test = "A rabbit has a carrot";
        Boolean numbers = hasMoreEvenThanOdd("12344");
        System.out.println(test);
        System.out.println(hideLetterA(test) + " This is the new string");
        System.out.println(numbers);
        System.out.println(makeTextTriangle(5));
    }

    public static String hideLetterA(String sentence) {
        String result = "";
        for(int i = 0; i < sentence.length(); i++) {
            if(sentence.charAt(i) == 'a' || sentence.charAt(i) == 'A') {
                result += "*";
            } else {
                result += sentence.charAt(i);
            }
        }
        return result;
    }

    public static Boolean hasMoreEvenThanOdd(String sentence) {
        int x = Integer.parseInt(sentence);
        int evenCount = 0, oddCount = 0, num;
        while (x > 0) {
            num = x % 10;
            if(num % 2 == 0) evenCount++;
            if(num % 2 == 1) oddCount++;
            x /= 10;
        }
        return evenCount > oddCount;
    }

    public static String makeTextTriangle(int a) {
        String stars = "";
        for (int i = 0; i < a; i++) {
            for (int j = 0; j <= i; j++) {
                stars += "*";
            }
            stars += "\n";
        }
        return stars;
    }
}