Question

Write a Java program to calculate the grade of the student using the below criteria. Grade "Excellent": Marks>75 Grade "Satisfactory": 75>Marks>50 Grade "Needs Improvement": 50>Marks>40 Grade "Failing": Marks<40

Answer 1

this can be done using an if statement. Here is the proper syntax:
if(Marks > 75) {
System.out.println("Grade \"Excellent\"."); //basically- if variable Marks is greater than
//--75, it will execute everything inside the bracuts- in this case
//it will execute the System class- which will inform the user
//that his grade was excellent.
//you can make the rest of the program with if statements like the
//one I just demonstrated.
//if you're wondering what the backslashes are doing in that string
//literal (string literal = what is in the parenthesis after the system class)
//the backslashes allow the " quotes to print, without the quotes
//opening and closing the string itself.

}


All of the info after // is just comments that will be ignored by the compiler. Also, when I saw your question- there is one quick issue I saw in the logic; it says
excellent > 75, and it says 75 > satisfactory > 50 -- if your variable 'marks' was to equal 75, it would not fall under any catagory. To fix this, use the greater than or equals to sign: >= . there is also the less than or equals to sign: <=
Notice the equals sign is after the greater/less than sign. It must be in that orientation to be proper syntax. Allright- if you have any questions lemme know.

Answer 2

all of the words after the System.out.println(""); are comments- and should not be in your program- but remember the opening & closing brackuts.