test.java

/*
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 * and open the template in the editor.
 */
package test;

/**
 *
 * @author Halim
 */
public class test {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // Question 1
       String kata = "qwertyuiopasdfghjklzxcvbnm";
       char[] charArr = kata.toCharArray();
       String vokal = "";
       String konson = "";
       for (int i = 0; i < charArr.length; i++) {
           if (charArr[i] == 'a' || charArr[i] == 'i' || charArr[i] == 'u' || charArr[i] == 'e' || charArr[i] == 'o') {
               vokal += charArr[i];
           } else {
               konson += charArr[i];
           }
           
       }
       System.out.println("Konsonan : "+konson);
       System.out.println("Vokal : "+vokal);
        
//        ##############################################################################
        
        // Question 2
       for (int i = 1; i <= 6; i++) {
           for (int j = 1; j <= i; j++) { 
              System.out.print(i + " ");
          }
          System.out.println("");
          System.out.println("");
       }
        
//        ##############################################################################

        // Question 3
       int t1 = 1, t2 = 1;
       for (int i = 1; i <= 10; ++i) {
           System.out.print(t1 + " ");
           int sum = t1 + t2;
           t1 = t2;
           t2 = sum;
       }
        
//        ##############################################################################

        // Question 4
       int i = 1, n = 20, t1 = 1, t2 = 1;
       while (i <= n)
       {
           System.out.print(t1 + " ");
           int sum = t1 + t2;
           t1 = t2;
           t2 = sum;
           i++;
       }
        
    }
    
}