package cis119_07conditionals;

public class BooleanExamples {

    public static void main(String[] args) {

        /* boolean operators */
        
        System.out.println("!true = " + !true);                         // false
        System.out.println("!false = " + !false);                       // true

        System.out.println("false && false = " + (false && false));     //false
        System.out.println("false && true = " + (false && true));       //false
        System.out.println("true && false = " + (true && false));       //false
        System.out.println("true && true = " + (true && true));         //false

        System.out.println("false || false = " + (false || false));     //false
        System.out.println("false || true = " + (false || true));       //true
        System.out.println("true || false = " + (true || false));       //true
        System.out.println("true || true = " + (true || true));         //true
         
        
        /* nested if-else */
        boolean condition1 = true;
        boolean condition2 = false;

        if (condition1) {
            // nesting lets us add code appropriate for condition1
            // whichever way condition2 comes out.
            System.out.println("condition 1 is true");
            // then check condition2
            if (condition2) {
                System.out.println("both are true");
            } else {
                System.out.println("1 but not 2");
            }
        } else {
            System.out.println("condition 1 is false");
            if (condition2) {
                System.out.println("2 but not 1");
            } else {
                System.out.println("both false");
            }
        }
        System.out.println();



        /* conditionals with booleans */
        // does the same thing as the previous
        // but no nesting for condition1 independent of condition2
        if (condition1 && condition2) {
            System.out.println("both are true");
        } else if (condition1) {
            System.out.println("1 but not 2");
        } else if (condition2) {
            System.out.println("2 but not 1");
        } else {
            System.out.println("both false");
        }
        System.out.println();



        // setting boolean variables to boolean expressions
        int p = 6;
        int q = 1;
        boolean b = p == 1;
        boolean d = q < 5 || b;

        if (b && d) {
            System.out.println(" both true");
        }
        // demorgan's law
        if (!(!b || !d)) {
            System.out.println(" same thing");
        }

        if (b || d) {
            System.out.println(" at least one true");
        }
        // demorgan's law
        if (!(!b && !d)) {
            System.out.println(" same thing");
        }
        System.out.println();





    }
}