Java数组印刷星号 [英] Java array printing asterisk

问题描述

我知道这只是一个简单的Java数组的问题，但我没有任何想法怎么办this.What我想要做的是这样的：

I know this is just a simple java array problem, but I don't have any idea how to do this.What I want to do is like this:

＆学生NBSP;＆NBSP;分数＆NBSP;＆NBSP;图

约翰＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP; 3＆NBSP;＆NBSP; * 的**

马克＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP; 2＆NBSP;＆NBSP; **

詹姆斯＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP;＆NBSP; 1＆NBSP;＆NBSP; *

Student    Score    Graph
John                3    ***
Mark                2    **
James              1    *

我心目中是这样的一个数组：

What I have in mind is an array like this:

String[][] students = { { "John", "Mark", "James" }, { "3", "2", "1" } };

如何将打印而不阵列中添加另一组变量的线图？我希望它按照评分数只显示星号（*）。

How will I print the line graph without adding another set of variables in the array? I want it to just display asterisks (*) according to the number of score.

推荐答案

您可以做类似下面

    String[][] students = { { "John", "Mark", "James" }, { "3", "2", "1" } };
    for (int i = 0; i < students[0].length; i++) {
        StringBuilder asterix = new StringBuilder();
        for (int acnt = 0; acnt < Integer.parseInt(students[1][i]); acnt++)
            asterix.append("*");
        System.out.printf("%s\t%s\t%s", students[0][i], students[1][i],asterix.toString());
        System.out.println();
    }

输出

John    3   ***
Mark    2   **
James   1   *

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