Java程序以查找矩阵中的最大数和最小数
时间:2020-01-09 10:35:33 来源:igfitidea点击:
在这篇文章中,我们将看到一个Java程序,用于查找矩阵或者2维数组中的最大和最小数。
Java程序
查找矩阵中最大和最小数量的逻辑如下:
最初将矩阵索引(0,0)处的元素分配给min和max变量。然后一次迭代矩阵一行,并首先将每个元素与max变量进行比较。
如果max变量小于当前元素,则将当前元素分配给max变量,否则将当前元素与min变量进行比较,如果min变量大于当前元素,则将当前元素分配给min元素。
public class MaxAndMin { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.print("Enter number of rows and columns in the matrix : "); int row = in.nextInt(); int column = in.nextInt(); // Prepare matrix System.out.print("Enter elements of Matrix : "); int matrix[][] = new int[row][column]; for(int i = 0; i < row; i++){ for(int j = 0; j < column; j++){ matrix[i][j] = in.nextInt(); } } System.out.println("Entered Matrix : " ); for(int i = 0; i < row; i++){ for(int j = 0; j < column; j++){ System.out.print(" " +matrix[i][j]+"\t"); } System.out.println(); } // call method to find min and max in matrix findMinAndMax(matrix); } // Method to find maximum and minimum in matrix private static void findMinAndMax(int[][] matrix){ int maxNum = matrix[0][0]; int minNum = matrix[0][0]; for (int i = 0; i < matrix.length; i++) { for (int j = 0; j < matrix[i].length; j++) { if(maxNum < matrix[i][j]){ maxNum = matrix[i][j]; } else if(minNum > matrix[i][j]){ minNum = matrix[i][j]; } } } System.out.println("Max number: " + maxNum + " Min number: " + minNum); } }
输出:
Enter number of rows and columns in the matrix : 3 3 Enter elements of Matrix : 3 6 12 34 19 5 32 16 7 Entered Matrix : 3 6 12 34 19 5 32 16 7 Max number: 34 Min number: 3