[Ch1] Examples from Ch1 (4b9943cb) · Commits · examples / Head First Java 3rd Edition

src/main/java/ch1/BottleSong.java

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Changes for src/main/java/ch1/BottleSong.java: 27 added lines, 0 removed lines.
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		package ch1;

		public class BottleSong {
		public static void main(String[] args) {
		int bottlesNum = 10;
		String word = "bottles";

		while (bottlesNum > 0) {

		if (bottlesNum == 1) {
		word = "bottle"; // singular, as in ONE bottle.
		}

		System.out.println(bottlesNum + " green " + word + ", hanging on the wall");
		System.out.println(bottlesNum + " green " + word + ", hanging on the wall");
		System.out.println("And if one green bottle should accidentally fall,");
		bottlesNum = bottlesNum - 1;

		if (bottlesNum > 0) {
		System.out.println("There'll be " + bottlesNum +
		" green " + word + ", hanging on the wall");
		} else {
		System.out.println("There'll be no green bottles, hanging on the wall");
		} // end else
		} // end while loop
		} // end main method
		} // end class
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Changes for src/main/java/ch1/IfTest.java: 11 added lines, 0 removed lines.
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		package ch1;

		class IfTest {
		public static void main (String[] args) {
		int x = 3;
		if (x == 3) {
		System.out.println("x must be 3");
		}
		System.out.println("This runs no matter what");
		}
		}
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Changes for src/main/java/ch1/Loopy.java: 14 added lines, 0 removed lines.
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		package ch1;

		public class Loopy {
		public static void main(String[] args) {
		int x = 1;
		System.out.println("Before the Loop");
		while (x < 4) {
		System.out.println("In the loop");
		System.out.println("Value of x is " + x);
		x = x + 1;
		}
		System.out.println("This is after the loop");
		}
		}
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Changes for src/main/java/ch1/MyFirstApp.java: 10 added lines, 0 removed lines.
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		package ch1;

		public class MyFirstApp {

		public static void main (String[] args) {
		System.out.println("I Rule!");
		System.out.println("The World");
		}

		}
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Changes for src/main/java/ch1/PhraseOMatic.java: 29 added lines, 0 removed lines.
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		package ch1;

		public class PhraseOMatic {
		public static void main(String[] args) {

		// make three sets of words to choose from. Add your own!
		String[] wordListOne = {"agnostic", "opinionated", "voice activated", "haptically driven", "extensible", "reactive", "agent based", "functional", "AI enabled", "strongly typed"};

		String[] wordListTwo = {"loosely coupled", "six sigma", "asynchronous", "event driven", "pub-sub", "IoT", "cloud native", "service oriented", "containerized", "serverless", "microservices", "distributed ledger"};

		String[] wordListThree = {"framework", "library", "DSL", "REST API", "repository", "pipeline", "service mesh", "architecture", "perspective", "design", "orientation"};

		// find out how many words are in each list
		int oneLength = wordListOne.length;
		int twoLength = wordListTwo.length;
		int threeLength = wordListThree.length;

		// generate three random numbers
		int rand1 = (int) (Math.random() * oneLength);
		int rand2 = (int) (Math.random() * twoLength);
		int rand3 = (int) (Math.random() * threeLength);

		// now build a phrase
		String phrase = wordListOne[rand1] + " " + wordListTwo[rand2] + " " + wordListThree[rand3];

		// print out the phrase
		System.out.println("What we need is a " + phrase);
		}
		}
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