Easily create and customize simple ASCII tables in Java. Based off nedtwigg/asciitable and klaus31/ascii-art-table.
Maven:
<dependency>
<groupId>com.github.freva</groupId>
<artifactId>ascii-table</artifactId>
<version>1.2.0</version>
</dependency>
Gradle:
compile 'com.github.freva:ascii-table:1.1.0'
String[] headers = {"", "Name", "Diameter", "Mass", "Atmosphere"};
String[][] data = {
{"1", "Mercury", "0.382", "0.06", "minimal"},
{"2", "Venus", "0.949", "0.82", "Carbon dioxide, Nitrogen"},
{"3", "Earth", "1.000", "1.00", "Nitrogen, Oxygen, Argon"},
{"4", "Mars", "0.532", "0.11", "Carbon dioxide, Nitrogen, Argon"}};
System.out.println(AsciiTable.getTable(headers, data));
Will print
+---+---------+----------+------+---------------------------------+
| | Name | Diameter | Mass | Atmosphere |
+---+---------+----------+------+---------------------------------+
| 1 | Mercury | 0.382 | 0.06 | minimal |
+---+---------+----------+------+---------------------------------+
| 2 | Venus | 0.949 | 0.82 | Carbon dioxide, Nitrogen |
+---+---------+----------+------+---------------------------------+
| 3 | Earth | 1.000 | 1.00 | Nitrogen, Oxygen, Argon |
+---+---------+----------+------+---------------------------------+
| 4 | Mars | 0.532 | 0.11 | Carbon dioxide, Nitrogen, Argon |
+---+---------+----------+------+---------------------------------+
List<Planet> planets = Arrays.asList(
new Planet(1, "Mercury", 0.382, 0.06, "minimal"),
new Planet(2, "Venus", 0.949, 0.82, "Carbon dioxide, Nitrogen"),
new Planet(3, "Earth", 1.0, 1.0, "Nitrogen, Oxygen, Argon"),
new Planet(4, "Mars", 0.532, 0.11, "Carbon dioxide, Nitrogen, Argon"));
System.out.println(AsciiTable.getTable(planets, Arrays.asList(
new Column().with(planet -> Integer.toString(planet.num)),
new Column().header("Name").with(planet -> planet.name),
new Column().header("Diameter").with(planet -> String.format("%.03f", planet.diameter)),
new Column().header("Mass").with(planet -> String.format("%.02f", planet.mass)),
new Column().header("Atmosphere").with(planet -> planet.atmosphere))));
Prints the same table as above.
Horizontally align header and data columns independently to left, right and center:
System.out.println(AsciiTable.getTable(planets, Arrays.asList(
new Column().with(planet -> Integer.toString(planet.num)),
new Column().header("Name").headerAlign(HorizontalAlign.CENTER).dataAlign(HorizontalAlign.LEFT).with(planet -> planet.name),
new Column().header("Diameter").with(planet -> String.format("%.03f", planet.diameter)),
new Column().header("Mass").with(planet -> String.format("%.02f", planet.mass)),
new Column().header("Atmosphere").headerAlign(HorizontalAlign.RIGHT).dataAlign(HorizontalAlign.CENTER).with(planet -> planet.atmosphere))));
Prints
+---+---------+----------+------+---------------------------------+
| | Name | Diameter | Mass | Atmosphere |
+---+---------+----------+------+---------------------------------+
| 1 | Mercury | 0.382 | 0.06 | minimal |
+---+---------+----------+------+---------------------------------+
| 2 | Venus | 0.949 | 0.82 | Carbon dioxide, Nitrogen |
+---+---------+----------+------+---------------------------------+
| 3 | Earth | 1.000 | 1.00 | Nitrogen, Oxygen, Argon |
+---+---------+----------+------+---------------------------------+
| 4 | Mars | 0.532 | 0.11 | Carbon dioxide, Nitrogen, Argon |
+---+---------+----------+------+---------------------------------+
Limit any column to certain width:
System.out.println(AsciiTable.getTable(planets, Arrays.asList(
new Column().with(planet -> Integer.toString(planet.num)),
new Column().header("Name").with(planet -> planet.name),
new Column().header("Diameter").with(planet -> String.format("%.03f", planet.diameter)),
new Column().header("Mass").with(planet -> String.format("%.02f", planet.mass)),
new Column().header("Atmosphere Composition").maxColumnWidth(12).with(planet -> planet.atmosphere))));
Prints
+---+---------+----------+------+------------+
| | Name | Diameter | Mass | Atmosphere |
| | | | | Compositio |
| | | | | n |
+---+---------+----------+------+------------+
| 1 | Mercury | 0.382 | 0.06 | minimal |
+---+---------+----------+------+------------+
| 2 | Venus | 0.949 | 0.82 | Carbon |
| | | | | dioxide, |
| | | | | Nitrogen |
+---+---------+----------+------+------------+
| 3 | Earth | 1.000 | 1.00 | Nitrogen, |
| | | | | Oxygen, |
| | | | | Argon |
+---+---------+----------+------+------------+
| 4 | Mars | 0.532 | 0.11 | Carbon |
| | | | | dioxide, |
| | | | | Nitrogen, |
| | | | | Argon |
+---+---------+----------+------+------------+
Bonus: The original line breaks (System.lineSeparator()) are always preserved,
so you can split your text however you want before making the table.
Special row at the end of the table that can be used to for example repeat the header if the table is really long, or display some summary information such as average or totals.
System.out.println(AsciiTable.getTable(planets, Arrays.asList(
new Column().with(planet -> Integer.toString(planet.num)),
new Column().header("Name").footer("Average").headerAlign(CENTER).dataAlign(RIGHT).with(planet -> planet.name),
new Column().header("Diameter").headerAlign(RIGHT).dataAlign(CENTER).footerAlign(CENTER)
.footer(String.format("%.03f", planets.stream().mapToDouble(planet -> planet.diameter).average().orElse(0)))
.with(planet -> String.format("%.03f", planet.diameter)),
new Column().header("Mass").headerAlign(RIGHT).dataAlign(LEFT)
.footer(String.format("%.02f", planets.stream().mapToDouble(planet -> planet.mass).average().orElse(0)))
.with(planet -> String.format("%.02f", planet.mass)),
new Column().header("Atmosphere").headerAlign(LEFT).dataAlign(CENTER).with(planet -> planet.atmosphere))));
Prints
+---+---------+----------+------+---------------------------------+
| | Name | Diameter | Mass | Atmosphere |
+---+---------+----------+------+---------------------------------+
| 1 | Mercury | 0.382 | 0.06 | minimal |
+---+---------+----------+------+---------------------------------+
| 2 | Venus | 0.949 | 0.82 | Carbon dioxide, Nitrogen |
+---+---------+----------+------+---------------------------------+
| 3 | Earth | 1.000 | 1.00 | Nitrogen, Oxygen, Argon |
+---+---------+----------+------+---------------------------------+
| 4 | Mars | 0.532 | 0.11 | Carbon dioxide, Nitrogen, Argon |
+---+---------+----------+------+---------------------------------+
| | Average | 0.716 | 0.50 | |
+---+---------+----------+------+---------------------------------+
Character[] borderStyle = ...;
System.out.println(AsciiTable.getTable(borderStyles, planets, Arrays.asList(
new Column().with(planet -> Integer.toString(planet.num)),
new Column().header("Name").footer("Average").headerAlign(CENTER).dataAlign(RIGHT).with(planet -> planet.name),
new Column().header("Diameter").headerAlign(RIGHT).dataAlign(CENTER).footerAlign(CENTER)
.footer(String.format("%.03f", planets.stream().mapToDouble(planet -> planet.diameter).average().orElse(0)))
.with(planet -> String.format("%.03f", planet.diameter)),
new Column().header("Mass").headerAlign(RIGHT).dataAlign(LEFT)
.footer(String.format("%.02f", planets.stream().mapToDouble(planet -> planet.mass).average().orElse(0)))
.with(planet -> String.format("%.02f", planet.mass)),
new Column().header("Atmosphere").headerAlign(LEFT).dataAlign(CENTER).with(planet -> planet.atmosphere))));
Default style is AsciiTable.BASIC_ASCII
With borderStyle = AsciiTable.BASIC_ASCII_NO_OUTSIDE_BORDER, it prints
| Name | Diameter | Mass | Atmosphere
---+---------+----------+------+---------------------------------
1 | Mercury | 0.382 | 0.06 | minimal
---+---------+----------+------+---------------------------------
2 | Venus | 0.949 | 0.82 | Carbon dioxide, Nitrogen
---+---------+----------+------+---------------------------------
3 | Earth | 1.000 | 1.00 | Nitrogen, Oxygen, Argon
---+---------+----------+------+---------------------------------
4 | Mars | 0.532 | 0.11 | Carbon dioxide, Nitrogen, Argon
---+---------+----------+------+---------------------------------
| Average | 0.716 | 0.50 |
With borderStyle = AsciiTable.BASIC_ASCII_NO_DATA_SEPARATORS, it prints
+---+---------+----------+------+---------------------------------+
| | Name | Diameter | Mass | Atmosphere |
+---+---------+----------+------+---------------------------------+
| 1 | Mercury | 0.382 | 0.06 | minimal |
| 2 | Venus | 0.949 | 0.82 | Carbon dioxide, Nitrogen |
| 3 | Earth | 1.000 | 1.00 | Nitrogen, Oxygen, Argon |
| 4 | Mars | 0.532 | 0.11 | Carbon dioxide, Nitrogen, Argon |
+---+---------+----------+------+---------------------------------+
| | Average | 0.716 | 0.50 | |
+---+---------+----------+------+---------------------------------+
With borderStyle = AsciiTable.BASIC_ASCII_NO_DATA_SEPARATORS_NO_OUTSIDE_BORDER, it prints
| Name | Diameter | Mass | Atmosphere
---+---------+----------+------+---------------------------------
1 | Mercury | 0.382 | 0.06 | minimal
2 | Venus | 0.949 | 0.82 | Carbon dioxide, Nitrogen
3 | Earth | 1.000 | 1.00 | Nitrogen, Oxygen, Argon
4 | Mars | 0.532 | 0.11 | Carbon dioxide, Nitrogen, Argon
---+---------+----------+------+---------------------------------
| Average | 0.716 | 0.50 |
With borderStyle = AsciiTable.NO_BORDERS, it prints
Name Diameter Mass Atmosphere
1 Mercury 0.382 0.06 minimal
2 Venus 0.949 0.82 Carbon dioxide, Nitrogen
3 Earth 1.000 1.00 Nitrogen, Oxygen, Argon
4 Mars 0.532 0.11 Carbon dioxide, Nitrogen, Argon
Average 0.716 0.50
With borderStyle = AsciiTable.FANCY_ASCII, it prints
╔═══╤═════════╤══════════╤══════╤═════════════════════════════════╗
║ │ Name │ Diameter │ Mass │ Atmosphere ║
╠═══╪═════════╪══════════╪══════╪═════════════════════════════════╣
║ 1 │ Mercury │ 0.382 │ 0.06 │ minimal ║
╟───┼─────────┼──────────┼──────┼─────────────────────────────────╢
║ 2 │ Venus │ 0.949 │ 0.82 │ Carbon dioxide, Nitrogen ║
╟───┼─────────┼──────────┼──────┼─────────────────────────────────╢
║ 3 │ Earth │ 1.000 │ 1.00 │ Nitrogen, Oxygen, Argon ║
╟───┼─────────┼──────────┼──────┼─────────────────────────────────╢
║ 4 │ Mars │ 0.532 │ 0.11 │ Carbon dioxide, Nitrogen, Argon ║
╠═══╪═════════╪══════════╪══════╪═════════════════════════════════╣
║ │ Average │ 0.716 │ 0.50 │ ║
╚═══╧═════════╧══════════╧══════╧═════════════════════════════════╝
Border styles is a Character array of length 29 and you can configure your own
styles by passing in different array. To see which element in Character array
corresponds to which element in the table:
Character[] borderStyles = "ABCDEFGHIJKLMNOPQRSTUVWXYZ123".chars().mapToObj(c -> (char)c).toArray(Character[]::new);
Prints
ABBBCBBBBBBBBBCBBBBBBBBBBCBBBBBBCBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBD
E F Name F Diameter F Mass F Atmosphere G
HIIIJIIIIIIIIIJIIIIIIIIIIJIIIIIIJIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIK
L 1 M Mercury M 0.382 M 0.06 M minimal N
OPPPQPPPPPPPPPQPPPPPPPPPPQPPPPPPQPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPR
L 2 M Venus M 0.949 M 0.82 M Carbon dioxide, Nitrogen N
OPPPQPPPPPPPPPQPPPPPPPPPPQPPPPPPQPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPR
L 3 M Earth M 1.000 M 1.00 M Nitrogen, Oxygen, Argon N
OPPPQPPPPPPPPPQPPPPPPPPPPQPPPPPPQPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPR
L 4 M Mars M 0.532 M 0.11 M Carbon dioxide, Nitrogen, Argon N
STTTUTTTTTTTTTUTTTTTTTTTTUTTTTTTUTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTV
W X Average X 0.716 X 0.50 X Y
Z111211111111121111111111211111121111111111111111111111111111111113