T11- Lets make our first full java program step by step
hello everyone , in this tutorial we will make our first fully operational java program from what we learned previously
this program will be easy to make and understand.
we learned in the previous tutorials how to use if and if..else statements
another way of using if statement is using the nested if statement
and nested if statement : means an if statement inside another if statement.
lets make a program that test multiple cases and conditions using nested if statement
now our program will be a student grade marker
if the student grade >= 90 print (A)
if the student grade >= 80 print (B)
and so on
first lets add a scanner class to our program as we learned before
now lets create an object of the class scanner and name it "input "
Scanner input = new Scanner (System.in);
now lets ask the user to enter the grade and declare an integer variable named grade and take the input from the user using the scanner method ( nextInt)
System.out.println("Enter your grade"); int grade = input.nextInt();
now lets make our nested if statement
if (grade>=90) System.out.println("A"); else if (grade>=80) System.out.println("B"); else if (grade>=70) System.out.println("C"); else if (grade>=60) System.out.println("D"); else System.out.println("F");
now lets test our program
lets run the program and put 75 as a grade when the program ask
as you can see our input was 75 and the condition was for any grade from 70 or more the mark will be C
now lets try below 60
as you see, our input was 58 so the only matching condition is for any grade below 60 the mark will be F
i hope our tutorial was easy , follow every step and make your own version or a better version of this program.