37 ASSIGNMENT OPERATOR VS EQUAL TO OPERATOR

 package com.cnc;

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

        int newValue =50;
        if (newValue = 50){  //we are not assigning the value
            System.out.println("this is an error");
        }
        int newValue1 =50;
        if (newValue1 == 50){ //we are not assigning the value but we are  testing if newValue1 is equal to 50 or not
            System.out.println("Error is removed by using == in newValue1");
        }

        boolean isCar = false;
        if ( isCar = true){
            System.out.println("This is not supposed to happen in car");
        }
        boolean isCar1 = false;
        if ( isCar1 == true){
            System.out.println("This is fine and we are using == sign in car1 ");
        }
        boolean isCar2 = false;
        if (!isCar2){
            System.out.println("This is fine and we are using ! sign in car2 ");
        }

    }
}


Error is removed by using == in newValue1
This is not supposed to happen in car
This is fine and we are using ! sign in car2

Popular posts from this blog

NUMBER PALINDROME CHALLENGE

  package com.cnc ; public class Main { public static void main ( String [] args) { System . out .println( isPalindrome ( 101 )); } public static boolean isPalindrome ( int number) { int reverse = 0 ; int temporaryNumber =number; while (number!= 0 ){ reverse = reverse* 10 + number% 10 ; number = number/ 10 ; } if (reverse== temporaryNumber ) return true ; else return false ; } }
Read more

ENCAPSULATION CHALLENGE

package com.cnc ; public class Main { public static void main ( String [] args) { Printer printer = new Printer( 50 , true ); System . out .println( "Initial Page count is " + printer .getNumberOfPages()); int pagesPrinted = printer .getNumberOfPages( 4 ); } } package com.cnc ; public class Printer { private int tonerLevel = 100 ; private int numberOfPages ; private boolean isDuplex ; public Printer ( int tonerLevel, boolean isDuplex) { if (tonerLevel>=- 1 && tonerLevel<= 100 ) { this . tonerLevel = tonerLevel; } else { this . tonerLevel =- 1 ; } this . isDuplex = isDuplex; this . numberOfPages = 0 ; } public int addToner ( int tonerAmount){ if (tonerAmount> 0 && tonerAmount<= 100 ){ if ( this . tonerLevel +tonerAmount > 100 ){ return - 1 ; } this . tonerLevel += tonerAmount
Read more

LARGEST PRIME FACTOR OF A NUMBER

package com.cnc ; public class Main { public static void main ( String [] args) { System . out .println( getLargestPrime ( 20 )); System . out .println( getLargestPrime ( 7 )); } public static int getLargestPrime ( int number){ int i,stored=number; if (number<= 0 ) return - 1 ; else if ( isPrime (number)){ number=stored; } else { for ( i = 2 ; i < number; i++){ if (number%i== 0 ){ stored=i; } } } return stored; } public static boolean isPrime ( int n){ for ( int j = 2 ; j <n; j ++){ if (n% j == 0 ) return false ; else return true ; } return false ; } } ☑ Here i created a new method isTrue. if the number is prime then the number will return the same as output. but if it is not a prime then it will return the largest number excluding itself.
Read more