Which of the following is the correct code to perform the following tasks?

⦁ Print "The student has passed." if the integer variable finalMarks is greater than or equal to 50
⦁ Print "The student has failed" if the variable finalMarks is less than 50

Question

Which of the following is the correct code to perform the following tasks?

⦁ Print "The student has passed." if the integer variable finalMarks is greater than or equal to 50
⦁ Print "The student has failed" if the variable finalMarks is less than 50

BlackTom AI · Accepted Answer

To solve this, we must compare each option against the requirement: print "The student has passed." when finalMarks >= 50, otherwise print "The student has failed.".
Option 1: if (finalMarks < 50) { System.out.println("The student has passed."); } else { System.out.println("The student has failed."); }
This reverses the condition and the messages. It prints passed when finalMarks is less than 50, which contradicts the specification. The else branch prints failed correctly for the opposite case, but the main condition is inverted, so this option is incorrect.
Option 2: if (finalMarks == 50) { System.out.println("The student has passed."); } else { System.out.println("The student has failed."); }
Here, the program only passes exactly when finalMarks equals 50. Any value greater than 50 would go to the else branch, printing failed, which violates the requirement that 50 or more should pass. Therefore, this option is incorrect due to an overly strict equality check.
Option 3: for (finalMarks >= 50) { System.out.println("The student has passed."); } else { System.out.println("The student has failed."); }
This option uses the keyword for in a way that makes no sense here. The syntax is invalid: a for loop cannot have a boolean condition like that in this context, and the else block is not tied to any if statement. Even aside from syntax, the intended behavior is not achieved. This option is incorrect due to both syntax and logic errors.
Option 4: if (finalMarks >= 50) { System.out.println("The student has passed."); } else { System.out.println("The student has failed."); }
This option directly implements the specified behavior: it checks whether finalMarks is greater than or equal to 50, printing the pass message in that case and printing the fail message otherwise. The condition and the two branches align exactly with the requirement, making this the correct choice.

Which of the following is the correct code to perform the following tasks? ⦁ Print "The student has passed." if the integer variable finalMarks is greater than or equal to 50 ⦁ Print "The student has failed" if the variable finalMarks is less than 50单项选择题

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