yxtu.java

package youxiangtu import java.io.* public class YXTu{ static public void main(String[] args){

package youxiangtu;

import java.io.*;

public class YXTu{

   static public void main(String[] args){

         int i=0,j=0, n=0;
     int[][] m = new int[100][100];
     System.out.print("请输入n*n矩阵的n值:");
     try {
       BufferedReader by = new BufferedReader(new InputStreamReader(System.in));
       String s1 = by.readLine();
       n = Integer.parseInt(s1);            //键盘读入n

       for (i = 0; i < n; i++)                 //生成随机矩阵
         for (j = 0; j < n; j++) {
           m[i][j] = (int) (Math.random() * 2);     //控制产生0与1
           System.out.print(m[i][j] + "");
           if ( (j + 1) % n == 0) System.out.print("\n");
         }
       System.out.println(" 各个顶点的度为：");

     for (i = 0; i < n; i++) {   //输出各个顶点的度
            int sum=0;
             for (j = 0; j < n; j++){
               if (m[i][j] == 1)
              sum = sum + m[i][j];
            } System.out.println("顶点V"+i+"的度为:"+sum);
                 }
         }catch (Exception e){
      }
     }
 }