Example to learn about tracing - Conditional Execution and Math Operator in JAVA

DetermineOutputDemo.java

public class DetermineOutputDemo {
    public static void main(String[] args) {
        outputDemo7();
    }
    static void outputDemo1(){
        //Output x is :2
        int x;
        x = 3*4%5;
        System.out.println("x is :" + x);
    }
    static void outputDemo2(){
        //Reference:https://docs.oracle.com/javase/tutorial/java/nutsandbolts/operators.html
//        multiplicative 	* / %
//        additive 	+ -
        //7*8 = 56 --> 56/5 = 11 -->11%10 =1 3+4-(1)
        //x is 6
        int x;
        x= 3+4-7*8/5%10;
        System.out.println("x is :" + x);
    }
    static void outputDemo3(){
        //x is 5  (4 + 1=5)
        int x;
        x = 4 %5 + 6%5;
        System.out.println("x is :" + x);
    }
    static  void outputDemo4(){
        //Output is true --> (true and (true and true))
        int x=10, y=5;
        boolean p ,q;
        p=  x>9;
        q = x>3 && y!=3;
        if(p && q){
            System.out.println("True");
        }
        else
        {
            System.out.println("False");
        }
    }
    static void outputDemo5(){
        //Output x is 0 y is 10 z is  8
        int x=10,y,z;
        z=y=x;
        //10 10 10
        System.out.println("x is " + x + " y is " + y + " z is  " + z);

        y=x--;
        //9 10 10
        System.out.println("x is " + x + " y is " + y + " z is  " + z);

        z=--x;
        //8 10 8
        System.out.println("x is " + x + " y is " + y + " z is  " + z);

        x= --x - x--;
        //0 10 8
        //-1       7-8-- --> 7 - 7 -- > 0
        System.out.println("x is " + x + " y is " + y + " z is  " + z);
    }
    static  void outputDemo6(){
        //Output b is 100 c is 10
        int a=500,b=100,c=10;
        if(!(a>=400)){
            b=300;
            c=200;
        }
        System.out.println("b is " + b  + " c is " + c);
    }
    static void outputDemo7(){
        //Output b is 20 and c is 40
        int a =10,b=20,c=30;
        if(a>=100)
            b=b++;
            c=40;
        System.out.println("b is " + b  + " c is " + c);
    }
}