Question

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:

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

What I have in mind is an array like this:

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

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.

Answer 1

You can do something like below

    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();
    }

Output

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