Code interview guide for Programmers eighth chapter array and matrix problems circle print matrix

Topic

转圈打印矩阵

Java code

Package com.lizhouwei.chapter8;/** * @Description: Circular print Matrix * @Author: Lizhouwei * @CreateDate: 2018/4/28 21:52 * @Modify by        : * @ModifyDate: */public class Chapter8_1 {public void Printmatrix (int[][] matrix) {int TR = 0;        int TC = 0;        int DR = matrix.length-1;        int DC = matrix[0].length-1;            while (TR < DR) {Printltor (Matrix, tr++, DR, TC, DC);            Printutod (Matrix, TR, DR, TC, dc--);            Printrtol (Matrix, TR, DR--, TC, DC);        Printdtou (Matrix, TR, DR, tc++, DC);            }} private void Printltor (int[][] Matrix, int tR, int dR, int tC, int dc) {while (TC <= DC) {        System.out.print (matrix[tr][tc++] + "");    } System.out.println (); } private void Printutod (int[][] Matrix, int tR, int dR, int tC, int dC) {while (TR <= DR) {Syst        Em.out.print (MATRIX[TR++][DC] + "");    } System.out.println (); } private void PrintrtOL (int[][] Matrix, int tR, int dR, int tC, int dC) {while (TC <= DC) {System.out.print (matrix[dr][d        c--] + "");    } System.out.println (); } private void Printdtou (int[][] Matrix, int tR, int dR, int tC, int dC) {while (TR <= DR) {Syst        Em.out.print (MATRIX[DR--][TC] + "");    } System.out.println ();        }//test public static void main (string[] args) {chapter8_1 chapter = new Chapter8_1 ();        int[][] Matrix = {{1, 2, 3, 4, 5}, {14, 15, 16, 17, 6}, {13, 20, 19, 18, 7}, {12, 11, 10, 9, 8}};    Chapter.printmatrix (matrix); }}

Results

Code interview guide for Programmers eighth chapter array and matrix problems circle print matrix