When compiling code I get the bad operand error

Every time I try to compile my code I get a 'bad operand' error involving boolean and int arrays. Any help would be appreciated. Thank you!

System.out.println("Passed: " + passed); 

if (exam.totalIncorrect() > 0)
    System.out.println("The incorrect answers are: "); 

    int missedIndex; 

    for (int i = 0; i < exam.totalIncorrect(); i++)
        missedIndex = exam.questionsMissed()[i]+1; 
        System.out.print(" " + missedIndex); 

The error I get is this:

   DriverExamApplication.java:58: error: bad operand types for binary operator   
            missedIndex = exam.questionsMissed() [i] +1; 


first type:  boolean

second type: int


You are trying to add a boolean with an integer....

Print it directly and save time converting types

System.out.print(" " + exam.questionsMissed()[i]+i+1);

Looks like exam.questionsMissed() returns an array of boolean. Then exam.questionsMissed()[i] is boolean, and you are trying append 1 to it.

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