How to align output in java

<blockquote><p>In Java, you can use the printf method to output the alignment, and control the format and alignment through format specifiers, including: left alignment, adding the sign 0 before the signed number, filling the gaps with zeros < right alignment> Align left and fill empty spaces with spaces^ Center align</p></blockquote> <p><img src="https://img.php.cn/upload/article/202404/21/2024042102282239814.jpg" alt="How to align output in java" ></p> <p><strong>How to align output in Java</strong></p> <p>In Java, we Alignment can be output using the <code>printf</code> method. The <code>printf</code> method provides a variety of format specifiers to control the format and alignment of the output. </p> <p><strong> Syntax: </strong></p> <pre class="brush:php;toolbar:false"><code class="java">printf(String format, Object... args);</code></pre> <p><strong> Parameters: </strong></p> <ul> <li> <code>format</code>: format string , which contains placeholders (for example, <code>%d</code>, <code>%s</code>). </li> <li> <code>args</code>: The actual parameters to be output. </li> </ul> <p><strong>Alignment specifier: </strong></p> <table> <thead><tr> <th>Specifier</th> <th>Description</th> </tr></thead> <tbody> <tr> <td><code>-</code></td> <td>Left aligned</td> </tr> <tr> <td><code> </code></td> <td> Precede signed numbers </td> </tr> <tr> <td><code>0</code></td> <td> Fill empty spaces with zeros </td> </tr> <tr> <td><code><</code></td><td>Align right</td></tr><tr><td><code>></code></td> <td>Align left and fill the gaps with spaces</td> </tr> <tr> <td><code>^</code></td> <td>Centered alignment</td> </tr> </tbody> </table> <p><strong>Example: </strong></p> <p>To right-justify the integer <code>123</code> and fill the gaps with spaces, you can write: </p> <pre class="brush:php;toolbar:false"><code class="java">System.out.printf("%10d", 123);</code></pre> <p>This will output: </p> <pre class="brush:php;toolbar:false"><code> 123</code></pre> <p>To right-justify the floating point number<code> 123.45</code> To center align and retain two decimal places, you can write: </p> <pre class="brush:php;toolbar:false"><code class="java">System.out.printf("%12.2f", 123.45);</code></pre> <p>This will output: </p> <pre class="brush:php;toolbar:false"><code> 123.45</code></pre> <p>To left align the string "Hello" and fill the gaps with asterisks, you can Write like this: </p> <pre class="brush:php;toolbar:false"><code class="java">System.out.printf("%-20s", "Hello");</code></pre> <p> This will output: </p> <pre class="brush:php;toolbar:false"><code>Hello****************</code></pre>

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