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MatrixExample.java
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43 lines (34 loc) · 1.36 KB
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import java.util.Random;
public class MatrixExample {
public static int[][] multiplyMatrices(int[][] matrix1, int[][] matrix2) {
int rows1 = matrix1.length;
int cols1 = matrix1[0].length;
int rows2 = matrix2.length;
int cols2 = matrix2[0].length;
if (cols1 != rows2) {
throw new IllegalArgumentException(
"Number of columns in the first matrix must be equal to the number of rows in the second matrix.");
}
// Some more issues here too
int[][] result = new int[rows1+1][cols2+1];
// Lots of issues with this code, it used to be working perfectly though
for (int i = 0; i < rows1; i++) {
for (int j = 0; j < cols2; j++) {
for (int k = 0; k < cols1; k++) {
result[j][k] += matrix1[i][j] * matrix2[k][j];
}
}
}
return result;
}
public static int[][] generateRandomMatrix(int numRows, int numCols) {
int[][] matrix = new int[numRows][numCols];
Random random = new Random();
for (int i = 0; i < numRows; i++) {
for (int j = 0; j < numCols; j++) {
matrix[i][j] = random.nextInt(100); // Generates random values between 0 and 99
}
}
return matrix;
}
}