4. Övning: Fält

         //Uppgift 1
        double[] tal = new double [3];
        Scanner in = new Scanner(System.in);



        System.out.println("skriv dina tal");
        tal[0] = in.nextDouble();
        tal[1] = in.nextDouble();
        tal[2] = in.nextDouble();
        double svar= tal[0]*tal[1]*tal[2];
            System.out.println(svar);

        //Uppgift 2
        int[] heltal = new int[3];
        Scanner inn = new Scanner(System.in);


        System.out.println("För in dina heltal");
        heltal[0] = inn.nextInt();
        heltal[1] = inn.nextInt();
        heltal[2] = inn.nextInt();

        int temp;
        temp = heltal[0];
        heltal[0] = heltal[2];
        heltal[2] = temp;

        System.out.println(heltal[0]);
        System.out.println(heltal[1]);
        System.out.println(heltal[2]);


        //Uppgift 3

        int arr[] = {34,45,67,12,78,94};
        String[] array = {"java","python","potat","toffla"};

        Arrays.sort(array);
        System.out.println("Detta är den sorterade sträng-arrayen: " + Arrays.toString(array));

        Arrays.sort(arr);
        System.out.println("Detta är den sorterade numeriska arrayen: " + Arrays.toString(arr));

        //Uppgift 4

        int n,temp4;

        Scanner s = new Scanner(System.in);

        System.out.println("Hur många nummer vill du föra in?");

        n=s.nextInt();

        int a[] = new int[n];

        System.out.println("För in alla nummer: ");

        for(int i = 0; i<n; i++){
            a[i] = s.nextInt();
        }
        for(int i = 0; i<n; i++){
            for(int j = i+1; j <n; j++){
                if (a[i] > a[j])
                {
                    temp4 = a[i];
                    a[i] = a[j];
                    a[j] = temp;
                }
            }
        }

        System.out.println("Dina nummer sorterade: ");
        for(int i = 0; i<n; i++){
            System.out.println(a[i]);
        }

        int count;
        String temp42;

        Scanner Scanner2 = new Scanner(System.in);

        System.out.println("Hur många strings vill du föra in? ");

        count = Scanner2.nextInt();

        String str[] = new String[count];
        Scanner Scanner3 = new Scanner(System.in);

        System.out.println("För in dina strängar en i taget: ");

        for(int i = 0; i<count; i++)
        {
            str[i] = Scanner3.nextLine();
        }

        Scanner2.close();
        Scanner3.close();

        for(int i = 0; i< count; i++)
        {
            for(int j= i+1; j<count; j++){
                if(str[i].compareTo(str[j])>0)
                {
                    temp42 = str[i];
                    str[i]= str[j];
                    str[j] = temp42;
                }
            }
        }

        System.out.println("dina sorterade strängar: ");
        for(int i = 0; i<count; i++){
            System.out.print(str[i] + ",");
        }
        System.out.println();

        //Uppgift 5

        int columns = 10;
        int rows = 10;

        int[][] grid = new int[rows][columns];



        for (int i = 0; i < grid.length; i++)
        {
            for (int j = 0; j < grid.length; j++)
            {
                grid[i][j] = 0;
                System.out.print(grid[i][j] + " ");
            }
            System.out.println();
        }