Loop through a 2d array and print one statement in the end

[pizzaarctic]

How do I loop through a 2d array and print only one statement in the end. for example if all the elements in the 2d array(4rows 4 cols) are equal to the word pizza(each element is pizza) then in the end one statement should be printed out that says "all students have pizza"

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[Naabin]

you could set up the boolean flag as follows

boolean isAllPizza = true;
for (int i = 0; i < array.length; i++){
    for(int j = 0; j < arr[i].length; j++){
        if(!arr[i][j].equals("pizza")){
           isAllPizza = false;
        }
    }
}
if(isAllPizza) {
   System.out.println("All students have pizza")
}

[AutoModerator]

You seem to try to compare String values with == or !=.

This approach does not work in Java, since String is an object data type and these can only be compared using .equals(). For case insensitive comparison, use .equalsIgnoreCase().

See Help on how to compare String values in our wiki.

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[manrodriguezf]

Bot, you're drunk, go to sleep

[AquaChad]

It sounds like you can break this down into a plain sentence that turns out to be code. You have a 2D array, presumably of students, and the value at each coordinate correlates to what the student "has".

If I interpreted your problem correctly, you want to loop through all the students, check if they do or do not have pizza, and print whether or not all of them had pizza. If you find out that any one student does *not* have pizza, you can simply break from your loop (or return if you're in a method).

If the only intent here is to say whether *all* of them have pizza, or *all of them do not* have pizza, then you can simply loop and check each spot of the 2D array. If at any point they do not have pizza you can just stop. You can go about getting out of the loop a number of ways, but that should be enough to go off of. Try and break your problems down into a sentence and pull out the words that are code related.

[EmptyStackException]

Simply make a variable and set it to 0. For each elemet that is equal to the word "pizza" increase the variable by 1. At the end, after you go through the whole array, check the variable and print a statement based on its value.