tablica 2-wymiarowa 😂

import java.util.Random;

public class Tablica2 {

	int[][] nTab2;
	int sizeX, sizeY;

	private Tablica2 (int x, int y) {
		sizeX = x;
		sizeY = y;
		nTab2 = new int[x][y];
	}

	private void tabFill(int k) {
		Random r = new Random();
		for (int i = 0; i < sizeX; i++) {
			for (int j = 0; j < sizeY; j++) {
				int ran = r.nextInt(k);
				nTab2[i][j] = ran;
			}
		}
	}

	private void tabDisplay() {
		System.out.println("");
		for (int i = 0; i < sizeX; i++) {
			for (int j = 0; j < sizeY; j++) {
				System.out.print(nTab2[i][j] + " ");
				if (j == sizeY-1) {
					System.out.print("\n");
				}
			}
		}
		System.out.println("");
	}

	private void tabDisplayTrans() {
		for (int i = 0; i < sizeY; i++) {
			for (int j = 0; j < sizeX; j++) {
				System.out.print(nTab2[j][i] + " ");
				if (j == sizeX-1) {
					System.out.print("\n");
				}
			}
		}
		System.out.println("");
	}

	private int tabSum() {
		int Sum = 0;
		for (int i = 0; i < sizeX; i++) {
			for (int j = 0; j < sizeY; j++) {
				Sum += nTab2[i][j];
			}
		}
		return Sum;
	}

	private void tabMaxEl() {
		int max = nTab2[0][0];
		int x = 0;
		int y = 0;
		for (int i = 0; i < sizeX; i++) {
			for (int j = 0; j < sizeY; j++) {
				if (nTab2[i][j] > max) {
					max = nTab2[i][j];
					x = i;
					y = j;
				}
			}
		}
		System.out.println("Najwieksza wartosc to " + max + ", na pozycji [" + x + ", " + y + "]");
	}

	public void tabFindEl(int nFind) {
		boolean found = false;
		for (int i = 0; i < sizeX; i++) {
			for (int j = 0; j < sizeY; j++) {
				if (nTab2[i][j] == nFind) {
					System.out.println("Znaleziono " + nFind + " na pozycji [" + i + ", " + j + "]");
					found = true;
				}
			}
		}
		if (found == false) System.out.println("[-1, -1]");
	}

	public int tabBiggestRow() {
		int maxRow = 0;
		int maxSum = 0;
		int currSum = 0;
		for (int i = 0; i < sizeX; i++) {
			currSum = 0;
			for (int j = 0; j < sizeY; j++) {
				currSum += nTab2[i][j];
				if (currSum > maxSum) {
					maxSum = currSum;
					maxRow = i;
				}
			}
		}

		System.out.println("Wiersz " + maxRow + " ma najwieksza sume " + maxSum);
		return maxRow;
	}

	public void tabDelRow(int DelRowNum) {
		int n = DelRowNum;
		for (int i = 0; i < sizeX; i++) {
			if (i == n && i != sizeX-1) {
				for (int j = 0; j < sizeY; j++) {
					nTab2[i][j] = nTab2[i+1][j];
					n++;
				}
			}
		}
		sizeX--;
	}

	public static void main(String[] args) {
		Tablica2 tab1 = new Tablica2(6, 5);
		tab1.tabFill(20);
		tab1.tabDisplay();
		tab1.tabDisplayTrans();
		System.out.println("Suma elementow: " + tab1.tabSum());
		tab1.tabMaxEl();
		tab1.tabFindEl(13);
		tab1.tabDelRow(tab1.tabBiggestRow());
		tab1.tabDisplay();
	}
}