2D阵列打印带标点符号

时间:2016-11-17 21:31:14

标签: java arrays printing 2d

所以,我是一名初级编码员,我正在开设一个课程,打印一个基本的2D数组,其数据类似于学校级程序。

public class Skyward {
     public void Student(){
      String [][] studentArray=new String[3][4];

      String lastName1="Brown";
      String lastName2="Johnson";
      String lastName3="Michaelson";
     //variables for LastName

      String name1="Bob";
      String name2="Jenny";
      String name3="Michael";
   //variables for FirstName

      String grade1="11";
      String grade2="10";
      String grade3="12";
    //variables for Grade

      String t1grade1="A";
      String t1grade2="C";
      String t1grade3="F";
     //variables for T1Grade

     studentArray[0][0]=lastName1;
     studentArray[0][1]=name1;
     studentArray[0][2]=grade1;
     studentArray[0][3]=t1grade1;

    studentArray[1][0]=lastName2;
    studentArray[1][1]=name2;
    studentArray[1][2]=grade2;
    studentArray[1][3]=t1grade2;

    studentArray[2][0]=lastName3;
    studentArray[2][1]=name3;
    studentArray[2][2]=grade3;
    studentArray[2][3]=t1grade3;

 for ( int row=0; row < studentArray.length; row++ ) {
      for ( int col=0; col < studentArray[row].length; col++ ){
          System.out.print(studentArray[row][col]);
            System.out.print(", ");
            System.out.print(" -Grade- ");
            System.out.print(" T1Grade- ");
    }//end inner loop
      System.out.println("");
   }//end outer loop
}//end method
  }//end class

我需要打印为&#34; LastName,FirstName-Grade-x-T1Grade-y&#34;,而是它像这样出来

        Brown,  -Grade-  T1Grade- Bob,  -Grade-  T1Grade- 11,  -Grade-  T1Grade- A,  -Grade-  T1Grade- 

我不确定我做错了什么,主要是在标点符号和循环中。我尝试在这个网站上查看其他2D阵列打印问题,但由于我在编码方面仍然相当新,所以大多数其他问题或他们的答案都在我脑海中。任何提示都将非常感谢!

1 个答案:

答案 0 :(得分:0)

不需要内循环。它迭代studentArray中的列数,因此它会在每次迭代时调用所有System.out.prints。您可以改为使用以下内容:

for ( int row=0; row < studentArray.length; row++ ) {
      System.out.print(studentArray[row][0])
      System.out.print(", " + studentArray[row][1]);
      System.out.print(" -Grade- " + studentArray[row][2]);
      System.out.print(" T1Grade- " + studentArray[row][3]);
      System.out.println("");
}//end loop