输出二维数组

引用

public class wwww {

/*  public static void main(String[] args) throws CloneNotSupportedException {
    Calendar cal = Calendar.getInstance();
//int year = cal.get(Calendar.YEAR);
int Month =cal.get(Calendar.MONTH)+1;
System.out.println(Month);
cal.add(cal.MONTH, -1);
int saleMonth = cal.get(Calendar.MONTH)+1;
System.out.println(saleMonth);
   
    } */
public static void main(String[] args) {
  char[][] chars = {  
               {'1','2','3','4'},  
               {'5','6','7','8'},  
               {'9','0','a','b'},  
               {'c','d','e','f'}};  
 
       int columnNum = chars[0].length;  
       int rowNum = chars.length;  
 
       printCharArray(rowNum, columnNum, chars);  
   }  
 
   private static void printCharArray(int rowNum, int columnNum, char[][] chars) {  
   
       //print the first row of given array  
       for (int i = 0; i < columnNum; i++) {  
           System.out.print(chars[0][i]);  
       }  
 
       //swap rows with columns of sub-array  
       if (rowNum > 0 && columnNum > 0) {  
           int newRowNum = columnNum;  
           int newColumnNum = rowNum - 1;  
           char[][] newChars = new char[newRowNum][newColumnNum];  
           for (int i = 0; i < newRowNum; i++) {  
               for (int j = 0; j < newColumnNum; j++) {  
                   newChars[i][j] = chars[j + 1][newRowNum - i - 1];  
               }  
           }  
 
           //print the sub-array recursively  
           printCharArray(newRowNum, newColumnNum, newChars);  
       }  

}
  
}