EqualityPrinter.java

// Write a method printEqual with 3 parameters of type int. The method should not return anything (void).

// If one of the parameters is less than 0, print text "Invalid Value".  

// If all numbers are equal print text "All numbers are equal"  

// If all numbers are different print text "All numbers are different".   Otherwise, print "Neither all are equal or different".  

// EXAMPLES OF INPUT/OUTPUT:  

// printEqual(1, 1, 1); should print text All numbers are equal
// printEqual(1, 1, 2); should print text Neither all are equal or different
// printEqual(-1, -1, -1); should print text Invalid Value
// printEqual(1, 2, 3); should print text All numbers are different


public class EqualityPrinter {
    
    public static void printEqual(int num1, int num2, int num3){
        
        if((num1 < 0) || (num2 <0 ) || (num3 < 0)){
            System.out.println("Invalid Value");
        } 
        else if(num1 == num2 && num1 == num3 && num2 == num3){
            System.out.println("All numbers are equal");
        }
        else if(num1 != num2 && num1 != num3 && num2 != num3){
            System.out.println("All numbers are different");
        }
        else {
            System.out.println("Neither all are equal or different");
        }
    }

    public static void main(String[] args) {
        printEqual(1, 1, 1);
        printEqual(1, 1, 2);
        printEqual(-1, -1, -1);
        printEqual(1, 2, 3);
    }

}