Day 15 Sample

String txt1 = "The quick brown fox jumps over the lazy dog";
//using charAt()
for (int i = 0; i < txt1.length(); i++) {
    System.out.print(txt1.charAt(i) +  ", ");
}
// using toCharArray()
char[] txt1Char = txt1.toCharArray();
for (char c : txt1Char) {
    System.out.print(c + "|");
}
//-----------------------
char[] charArray1 = {'l','u','p','a','n','g',' '
    ,'h','i','n','i','r','a','n','g'};
int[] vowelCounter = {0,0,0,0,0};
int aCount = 0;
int eCount = 0;
int iCount = 0;
int oCount = 0;
int uCount = 0;
for (char c : charArray1) {
    switch (c) {
        case 'a':
            aCount++;
            vowelCounter[0]++;
            break;
        case 'e':
            eCount++;
            vowelCounter[1]++;
            break;
        case 'i':
            iCount++;
            vowelCounter[2]++;
            break;
        case 'o':
            oCount++;
            vowelCounter[3]++;
            break;
        case 'u':
            uCount++;
            vowelCounter[4]++;
            break;
    }
}
System.out.println("Total a: " + aCount);
System.out.println("Total e: " + eCount);
System.out.println("Total i: " + iCount);
System.out.println("Total o: " + vowelCounter[3]);
System.out.println("Total u: " + vowelCounter[4]);

//------------------------

package week3training;

public class Day15C {
    public static void main(String[] args) {
        Day15C callMe = new Day15C();
        double[] numberList = {9.8, 273.15, 299,42};
        System.out.println("Sum of numbers in array are: "
                + callMe.getSum1(numberList));
        // kelangan pa gamitan ng sout yung getSum Method para makita result
        System.out.println("using getSum2 method:");
        callMe.getSum2(numberList);

        String txt1 = "salitaan";
        System.out.println(txt1);
        callMe.changeText(txt1);
        System.out.println("After method: " + txt1);
    }

    public double getSum1 (double numArray[]) {
        double sum = 0;
        for (double d : numArray) {
            sum += d;
        }
        return sum;
    }

    //using Day12B as a reference
    public void getSum2 (double numArray[]) {
        double sum = 0;
        for (int i = 0; i < numArray.length; i++) {
            double number = numArray[i];
            sum += number;
            if (i < (numArray.length - 1)) {
                System.out.print(number + " + ");
            } else {
                System.out.print(number + " = ");
            }
        }
        System.out.println(sum);
    }

    public void changeText (String txtRef) {
        txtRef = "changed";
    }
}

//--------------------------------------------

package week3training;

public class Day15D {
    // no main method
    public void countVowels (String txtSentence) {
        int aCount = 0;
        int eCount = 0;
        int iCount = 0;
        int oCount = 0;
        int uCount = 0;
        char[] txt1Char = (txtSentence.toLowerCase()).toCharArray();
        for (char c : txt1Char) {
            switch (c) {
                case 'a':
                    aCount++;
                    break;
                case 'e':
                    eCount++;
                    break;
                case 'i':
                    iCount++;
                    break;
                case 'o':
                    oCount++;
                    break;
                case 'u':
                    uCount++;
                    break;
            }
        }
        System.out.println("Sentence: " + txtSentence);
        System.out.println("Total a: " + aCount);
        System.out.println("Total e: " + eCount);
        System.out.println("Total i: " + iCount);
        System.out.println("Total o: " + oCount);
        System.out.println("Total u: " + uCount);
    }

    public void capitalizeEachWord (String txtRef) {
        String[] words = txtRef.split(" ");
        String txtRefModded = "";
        for (String word : words) {
            if (!word.isEmpty()) {
                String firstLetter = word.substring(0,1).toUpperCase();
                String remains = word.substring(1).toLowerCase();
                txtRefModded += firstLetter + remains + " ";
            }
        }
        System.out.println(txtRefModded);
    }
}

//--------------------------------------------

package week3training;

public class Day15E {
    public static void main(String[] args) {
        Day15D callDay15D = new Day15D();
        String txtReference = "The quick brown fox jumps over the lazy dog.";
        callDay15D.countVowels(txtReference);
        callDay15D.capitalizeEachWord(txtReference);
        System.out.println("---");

        txtReference = "Who would know naught of art must learn, act, and then take his ease.";
        callDay15D.countVowels(txtReference);
        callDay15D.capitalizeEachWord(txtReference);
        System.out.println("***");

        txtReference = "Lake, tree, pine cone, cool brown soil.";
        callDay15D.countVowels(txtReference);
        callDay15D.capitalizeEachWord(txtReference);
        System.out.println("~~~");

        txtReference = "Fat pet pig got drunk, took walk.";
        callDay15D.countVowels(txtReference);
        callDay15D.capitalizeEachWord(txtReference);
        System.out.println("###");

        txtReference = "A hidden litter of little kittens.";
        callDay15D.countVowels(txtReference);
        callDay15D.capitalizeEachWord(txtReference);

        System.out.println("----------------");
        String txt2 = "magical";
        System.out.println(txt2.substring(1,4));
        // 1st number = start
        // 2nd number = index - 1 where to stop
    }
}