java formatting tabular output

Question

so i'm trying to format my output

System.out.println("Menu:\nItem#\tItem\t\tPrice\tQuantity");
    for(int i=0;i<stock.length;i++){
        System.out.println((i+1)+"\t"+stock[i].Description + "\t\t"+stock[i].price + "\t"+stock[i].quantity);

the output should be like

but it comes out as

I'd recommend doing some research into printf and String#format — MadProgrammer
– MadProgrammer, Commented Mar 27, 2017 at 1:02
Don't count on tabs to format things correctly. Ever. Just don't use them. — ajb
– ajb, Commented Mar 27, 2017 at 1:09

user6109179 · Accepted Answer · 2017-03-27 01:18:39Z

5

Java has a nice happy way to print out tables using System.out.format

Here's an example:

Object[][] table = new String[4][];
table[0] = new String[] { "Pie", "2.2", "12" };
table[1] = new String[] { "Cracker", "4", "15" };
table[2] = new String[] { "Pop tarts", "1", "4" };
table[3] = new String[] { "Sun Chips", "5", "2" };

System.out.format("%-15s%-15s%-15s%-15s\n", "Item#", "Item", "Price", "Quantity");
for (int i = 0; i < table.length; i++) {
    Object[] row = table[i];
    System.out.format("%-15d%-15s%-15s%-15s\n", i, row[0], row[1], row[2]);
}

Results:

Item#          Item           Price          Quantity       
0              Pie            2.2            12             
1              Cracker        4              15             
2              Pop tarts      1              4              
3              Sun Chips      5              2

answered Mar 27, 2017 at 1:18

user6109179

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3 Comments

Aaron Brock Over a year ago

System.out.prinf & System.out.format are actually the same thing! As shown in this question.

irrelevent Over a year ago

oh alright i finally did this

System.out.printf("Menu:\n%-10s %-10s %12s %14s\n","Item#","Item","Price","Quantity"); 		for(int i=0;i<stock.length;i++){ 			System.out.printf("%-10d %-10s %11.2f %8d\n",(i+1),stock[i].Description, stock[i].price, stock[i].quantity);

parsecer Over a year ago

What if I need table borders as well? Vertical | between columns.

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