使用循环打印数组的输出？

import java.io.*; 
import java.util.*;

public class AP_ExamArray
{

//User Input AP Exam Scores Using For Loops
public static void main(String args[])
{

   int [] scores = new int[5];

   int j;
   int sum_exam=0;

   for (j=0; j<scores.length; j++)
   {
   Scanner kbReader = new Scanner(System.in);
   System.out.println("Please enter AP Exam Score (1-5): ");
   scores[j]=kbReader.nextInt();
   sum_exam+=scores[j];
   }

//Initializer List Final Percentage

double [] final_percent = {97.3, 89.8, 96.2, 70.1, 93.0};

double sum_percent=0;
int k;

for(k=0; k<final_percent.length;k++)
{
sum_percent+=final_percent[k];
}

// String array containing last name (while loop)
String [] last_name = new String[5];
int i=0;
   while (i<last_name.length)
   {
   Scanner kbReader = new Scanner(System.in);
   System.out.println("Please enter last name: ");
   last_name[i]=kbReader.next();
   i++;
   }

//Average Exam Scores

double avg_exam = (double) sum_exam/scores.length;

//Average Final Percentage

double avg_percent = (double) sum_percent/final_percent.length;


}
}

The directions are:

方向是:

"For your output use a loop to print the student names, percentages, and test score, and be sure to include appropriate data below each column heading:

“对于您的输出,使用循环打印学生姓名,百分比和测试分数,并确保在每个列标题下方包含适当的数据:

Student Name Student Percentage Student Test Score."

学生姓名学生百分比学生考试成绩。“

I'm not sure how to do this!

我不知道怎么做!

1 个解决方案

#1

How about:

for(i=0; i<scores.length; i++)
    System.out.println(last_names[i] +"\t"+ final_percent[i] +"\t"+ scores[i]);

A for loop is used because you want to loop through the entire array of a known size.

使用for循环是因为您想循环遍历已知大小的整个数组。

If, instead, you wanted to loop only while a certain condition holds you would use a while loop: (e.g. while(condition) loop;).

相反,如果您只想在某个条件成立时循环,则使用while循环:(例如while(condition)loop;)。
System.out.println() will print a new line after each call, and \t will add a tab.

System.out.println()将在每次调用后打印一个新行,并且\ t将添加一个选项卡。

For better formatting check out this Oracle doc on using printf and format

为了更好地格式化,请查看此Oracle doc使用printf和format

#1