5장

1. 4
2. 3
3. 2
4. 2
5. 3

3
5

int[] array = {1, 5, 3, 8, 2};
int max = 0;
for (int i : array) {
	if (i > max) {
		max = i;
	}
}
System.out.println(max);

int[][] arr = {
	{95, 86},
	{83, 92, 96},
	{78, 83, 93, 87, 88}
};

int sum = 0;
for (int i=0; i < arr.length; i++) {
	for (int j=0; j < arr[i].length; j++) {
		sum += arr[i][j];
	}
}
System.out.println("총합 = " + sum);
System.out.println("평균 = " + sum/(arr[0].length+arr[1].length+arr[2].length));

6장

1. 3
2. 4
3. 4
4. ?
5. 1
6. 4
7. 2
8. 2
9. 2?
10. 4?
11. 3
12. 필드, 생성자, 메소드