Anatolian Rock (with Solution)

This program generates random lyrics for an Anatolian Rock song, like in the screenshot below. The song consists of three sections: verse A, chorus (nakarat), and verse B. Each section is 4 lines long.

To generate one line we randomly select a left phrase like "Yar" or "Ah", a middle phrase like "bu yaz" or "ruyular", and a right phrase like "buz kesti" or "alev alev" and combine them together. Where do we randomly select the phrases from? For each each section, we've included three String arrays of possible left, middle and right phrases. We should randomly select phrases from these arrays.

Solution: Let's define a method printRandomSection, which will generate a random section of the song. This method needs to know: (1) the number of lines in section, (2) the arrays to select random words from. So, lets include (1) a numLines parameter and (2) parameters for the left, mid and right String arrays.

To generate each line, we must randomly select a String from each array. We can randomly select an element from the array by generating a random number between 0 and array.length - 1. Note that to print the left, middle and right phrases on the same line we use print instead of println.

Solution

/**
 * Class: AnatolianRock
 * -----------------
 * A program that authors random song lyrics in the genre of Turkish/Anatolian Rock
 * The main idea comes from Cem Yilmaz: https://www.youtube.com/watch?v=oXZY1YTLAHI
 * Each line in the lyrics is created by concatenating randomly selected elements
 * from string arrays *_left, *_mid, *_right
 */

public class AnatolianRock extends ConsoleProgram {

	RandomGenerator rgen = RandomGenerator.getInstance();

	private String[] A_left = {"Yar","Ah","Bak","Of","Hey","Deliyim"};
	private String[] A_mid = {"bu beden","yatagim","yuregim","bu yaz","dort yanim","ruyalar"};
	private String[] A_right = {"buz kesti","ozler seni","alev alev","toz duman","kavruldu","delik desik"};

	private String[] B_left = {"bittim","gittin","sensiz","simdi","yalniz","sonunda"};
	private String[] B_mid = {"oldum","gonul","canim","dunyam","ruhum","aklim"};
	private String[] B_right = {"divane","avare","virane","bicare","amade","pervane"};

	private String[] NAKARAT_left={"e hadi","kiz sen","bu gece","a canim","deli yar","sebebim"};
	private String[] NAKARAT_mid={"fikrimi","tenimi","askimi","kalbimi","omrumu","sevdami"};
	private String[] NAKARAT_right={"benden cal","surgune sal","yollara vur","dagit, savur","atese at","ruhuna kat"};

	public void run(){
		println("--------A-----------");
		printRandomSequence(A_left, A_mid, A_right,4);
		println("------NAKARAT-------");
		printRandomSequence(NAKARAT_left,NAKARAT_mid,NAKARAT_right,4);
		println("--------B-----------");
		printRandomSequence(B_left,B_mid,B_right,4);
	}

	private void printRandomSequence(String[] left, String[] mid, String[] right, int numLines){
		for(int i = 0; i < numLines; i++) {
			print(left[rgen.nextInt(0, left.length-1)] + " ");
			print(mid[rgen.nextInt(0, mid.length-1)] + " ");
			print(right[rgen.nextInt(0, right.length - 1)]);
			print("\n");
		}
	}
}