JAVA · ОСНОВЫ · LESSON 25

Final project: points

Array, loop, condition and method · about 20 minutes

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STEP 1

Gather familiar pieces

Create an array of glasses. The sum method adds all the numbers in a loop and returns the answer. In main, show the results.

int[] scores = {2, 3, 4};
System.out.println(sum(scores));

✦ You already know the array, the loop and the return.

STEP 2

Add a solution

After the amount, check the condition: if the points are enough, show a message of success. Construct a program of familiar little steps.

if (total >= 8) {
    System.out.println("Победа");
}

Outcome programme

MassiveglassesMethodsumifresult

✦ Here it is important to combine the parts into one program.

IN-CLASS PRACTICE

Type the code yourself

Type an example manually. Check the signs and brackets.

public class Main {
    public static void main(String[] args) {
        int[] scores = {2, 3, 4};
        int total = sum(scores);
        System.out.println(total);
        if (total >= 8) {
            System.out.println("Победа");
        }
    }
    static int sum(int[] scores) {
        int total = 0;
        for (int score : scores) {
            total += score;
        }
        return total;
    }
}

Open the editor for class work

HOMEWORK

Solve it yourself

Do the final program: int[] scores of 1, 2, 5; static int sum(Zint[] scores) folds them through for-each and returns the amount. In main, output total and, if total is at least 8, output «Готово».

The answer is hidden. Use similar examples from the lesson notes.

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