How can I create table using ASCII in a console?
JavaConsoleJava Problem Overview
I would like to organize information like this:
The information is organized with cells, whereas with System.out.println the information would be very disorganized.
Java Solutions
Solution 1 - Java
You can use System.out.format() or System.out.printf() (printf internally simply invokes format so both methods give same results).
Below you will find example which will align text to left and fill unused places with spaces. Aligning String to left can be achieved with %-15s, which means:
%reserve (placeholder)15"places" for characterssof String data-type-and start printing them from left.
If you want to handle digits use d suffix like %-4d for max 4 digit numbers that should be placed at left side of column.
BTW printf doesn't add automatically line separators after printed data, so if we want to move cursor to next line we need to do it ourselves. We can use \r or \n, or let Formatter generate OS dependent line separator (like for Windows \r\n) with %n (note: this "placeholder" doesn't require any data as arguments, Java will provide correct sequence based on OS).
You can find more info about supported syntax at documentation of Formatter class.
String leftAlignFormat = "| %-15s | %-4d |%n";
System.out.format("+-----------------+------+%n");
System.out.format("| Column name | ID |%n");
System.out.format("+-----------------+------+%n");
for (int i = 0; i < 5; i++) {
System.out.format(leftAlignFormat, "some data" + i, i * i);
}
System.out.format("+-----------------+------+%n");
output
+-----------------+------+
| Column name | ID |
+-----------------+------+
| some data0 | 0 |
| some data1 | 1 |
| some data2 | 4 |
| some data3 | 9 |
| some data4 | 16 |
+-----------------+------+
Solution 2 - Java
Try this alternative: asciitable.
It offers several implementations of a text table, originally using ASCII and UTF-8 characters for borders.
Here is a sample table:
┌──────────────────────────────────────────────────────────────────────────┐ │ Table Heading │ ├──────────────────┬──────────────────┬──────────────────┬─────────────────┤ │ first row (col1) │ with some │ and more │ even more │ │ │ information │ information │ │ ├──────────────────┼──────────────────┼──────────────────┼─────────────────┤ │ second row │ with some │ and more │ even more │ │ (col1) │ information │ information │ │ │ │ (col2) │ (col3) │ │ └──────────────────┴──────────────────┴──────────────────┴─────────────────┘
Find the latest version: http://mvnrepository.com/artifact/de.vandermeer/asciitable
Solution 3 - Java
My class I created specifically for doing this is completely dynamic: https://github.com/2xsaiko/crogamp/blob/master/src/com/github/mrebhan/crogamp/cli/TableList.java
You can use it like this:
TableList tl = new TableList(3, "ID", "String 1", "String 2").sortBy(0).withUnicode(true);
// from a list
yourListOrWhatever.forEach(element -> tl.addRow(element.getID(), element.getS1(), element.getS2()));
// or manually
tl.addRow("Hi", "I am", "Bob");
tl.print();
It will look like this with unicode chars (note: will look better in console since all chars are equally wide):
┌─────────┬─────────────────────────────────────────────────────────────────────────┬────────────────────────────┐
│ Command │ Description │ Syntax │
┢━━━━━━━━━╈━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╈━━━━━━━━━━━━━━━━━━━━━━━━━━━━┪
┃ bye ┃ Quits the application. ┃ ┃
┃ ga ┃ Adds the specified game. ┃ <id> <description> <path> ┃
┃ gl ┃ Lists all currently added games ┃ [pattern] ┃
┃ gr ┃ Rebuilds the files of the currently active game. ┃ ┃
┃ gs ┃ Selects the specified game. ┃ <id> ┃
┃ help ┃ Lists all available commands. ┃ [pattern] ┃
┃ license ┃ Displays licensing info. ┃ ┃
┃ ma ┃ Adds a mod to the currently active game. ┃ <id> <file> ┃
┃ md ┃ Deletes the specified mod and removes all associated files. ┃ <id> ┃
┃ me ┃ Toggles if the selected mod is active. ┃ <id> ┃
┃ ml ┃ Lists all mods for the currently active game. ┃ [pattern] ┃
┃ mm ┃ Moves the specified mod to the specified position in the priority list. ┃ <id> <position> ┃
┃ top kek ┃ Test command. Do not use, may cause death and/or destruction ┃ ┃
┃ ucode ┃ Toggles advanced unicode. (Enhanced characters) ┃ [on|true|yes|off|false|no] ┃
┗━━━━━━━━━┻━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┻━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
And with unicode chars off (omit the .withUnicode(true)):
Command | Description | Syntax
--------+-------------------------------------------------------------------------+---------------------------
bye | Quits the application. |
ga | Adds the specified game. | <id> <description> <path>
gl | Lists all currently added games | [pattern]
gr | Rebuilds the files of the currently active game. |
gs | Selects the specified game. | <id>
help | Lists all available commands. | [pattern]
license | Displays licensing info. |
ma | Adds a mod to the currently active game. | <id> <file>
md | Deletes the specified mod and removes all associated files. | <id>
me | Toggles if the selected mod is active. | <id>
ml | Lists all mods for the currently active game. | [pattern]
mm | Moves the specified mod to the specified position in the priority list. | <id> <position>
top kek | Test command. Do not use, may cause death and/or destruction |
ucode | Toggles advanced unicode. (Enhanced characters) | [on|true|yes|off|false|no]
Solution 4 - Java
use System.out.printf()
For example,
String s = //Any string
System.out.printf(%10s, s);
will print out the contents of String s, taking up exactly 10 characters. So if you want a table, just make sure each cell in the table is printed out to the same length. Also notice that printf() doesn't print a new line, so you'll have to print it yourself.
Solution 5 - Java
You could use java-ascii-table. See also the author's site.
Solution 6 - Java
I do it this way
Example: Print a table with the values of x² - x + 41 for 1 < x < 42
public class PrimeEquation
{
public static void main(String[] args)
{
String header = "";
header += formatDiv("a-----b-------------b----------c\n");
header += formatRow("| x | x² - x + 41 | Is Prime |\n");
header += formatDiv("d-----e-------------e----------f\n");
System.out.print(header);
for (int x = 2; x <= 41; x++)
{
int y = primeEquation(x);
String str1 = String.format("| %3d | %11d | %8b |", x, y, MyPrimes.isPrime(y));
System.out.println(formatRow(str1));
}
System.out.println(formatDiv("g-----h-------------h----------i"));
}
public static int primeEquation(int x)
{
return (x*x) - x + 41;
}
public static String formatRow(String str)
{
return str.replace('|', '\u2502');
}
public static String formatDiv(String str)
{
return str.replace('a', '\u250c')
.replace('b', '\u252c')
.replace('c', '\u2510')
.replace('d', '\u251c')
.replace('e', '\u253c')
.replace('f', '\u2524')
.replace('g', '\u2514')
.replace('h', '\u2534')
.replace('i', '\u2518')
.replace('-', '\u2500');
}
}
Output:
Solution 7 - Java
This also works pretty well http://sourceforge.net/projects/texttablefmt/. Apache licensed too.
Solution 8 - Java
You can use string.format() with correct method Code could look something like this i guess
StringBuilder sb=new StringBuilder();
for(int i = 1; i <= numberOfColumns; i++)
{
sb.append(String.format(%-10s,rsMetaData.getColumnLabel(i);
}
As of library i dont think there is any that would do the job, however i might be mistaken! will actually do research on it
Also have a look at this http://docs.oracle.com/javase/1.5.0/docs/api/java/util/Formatter.html#syntax
Solution 9 - Java
TUIAWT lets you use AWT components in a console window. It doesn't look like it supports List or Table, though, but it may give you a starting point.
Solution 10 - Java
You can use Spring Shell utility class org.springframework.shell.table.TableModel:
TableModel model = new BeanListTableModel<>(portConfigurations, headers);
TableBuilder tableBuilder = new TableBuilder(model);
tableBuilder.addFullBorder(BorderStyle.oldschool);
//TableUtils.applyStyle(tableBuilder);
return tableBuilder.build().render(100);
Solution 11 - Java
I attempted a solution for this with these features
- Dynamic width of columns
- If width beyond max, then wrap it to next line.
Here is the simple pure java solution which you can use as per your need.
Output will look something like this.
+----+------------+--------------------------------+-----+--------------------------------+
| id | First Name | Last Name | Age | Profile |
+----+------------+--------------------------------+-----+--------------------------------+
| 1 | John | Johnson | 45 | My name is John Johnson. My id |
| | | | | is 1. My age is 45. |
| | | | | |
| 2 | Tom | | 35 | My name is Tom. My id is 2. My |
| | | | | age is 35. |
| | | | | |
| 3 | Rose | Johnson Johnson Johnson Johnso | 22 | My name is Rose Johnson. My id |
| | | n Johnson Johnson Johnson John | | is 3. My age is 22. |
| | | son Johnson Johnson | | |
| | | | | |
| 4 | Jimmy | Kimmel | | My name is Jimmy Kimmel. My id |
| | | | | is 4. My age is not specified |
| | | | | . I am the host of the late ni |
| | | | | ght show. I am not fan of Matt |
| | | | | Damon. |
| | | | | |
+----+------------+--------------------------------+-----+--------------------------------+
Solution 12 - Java
Just in case somebody needs this type of table:
+----+----+----+----+----+
| 1 | 2 | 3 | 4 | 5 |
+----+----+----+----+----+
| 6 | 7 | 8 | 9 | 10 |
+----+----+----+----+----+
| 11 | 12 | 13 | 14 | 15 |
+----+----+----+----+----+
| 16 | 17 | 18 | 19 | 20 |
+----+----+----+----+----+
| 21 | 22 | 23 | 24 | 25 |
+----+----+----+----+----+
Here is my solution:
public class TableShape {
public static void main(String[] args) {
int width_and_height=5;
int count=1;
for(int i=0;i<width_and_height ; i++) {
System.out.println("+----+----+----+----+----+");
for(int j=0;j<width_and_height;j++) {
System.out.format("| %2d ", count++);
if(j==width_and_height-1) { // closing | for last column
System.out.print("|");
}
}
System.out.println();
if(i==width_and_height-1) { // closing line for last row
System.out.print("+----+----+----+----+----+");
}
}
}
}