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POHow to rotate an asterisk trapezoid in java?
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  1. POHow to rotate an asterisk trapezoid in java?
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    copied!<p>In a school assignment we have to draw a trapezoid with asterisk in java. The constructor is like </p> <p><code>Trapezoid(int tWidth, int bWidth, char signA, char signB, int margin)</code></p> <p>tWidth: is the top width, bWidth: bottom width, signA: foreground sign, signB: background sign and margin: the margin (left and right) of the bWidth.</p> <p>my <code>main()</code> class looks like this:</p> <pre><code>Trapezoid t = new Trapezoid(3, 9, '*', '-', 2); t.printTrapezoid(); </code></pre> <p>then it should look like this:</p> <pre><code>-----***----- ----*****---- ---*******--- --*********-- </code></pre> <p>the <code>printTrapezoid()</code> method looks like this:</p> <pre><code>int width = 2* margin + bWidth; int length = (width - tWidth) / 2; while (tWidth &lt;= bWidth) { printChar(signB, length); printChar(signA, tWidth); printChar(signB, length); System.out.println(); tWidth++; } </code></pre> <p>The printChar() method looks like:</p> <pre><code>printChar(char signB, int length) { for (int i = 0; i &lt; length; i++) { System.out.print(signB); } } </code></pre> <p>So. This works fine for me. But i think there are some other and better solutions for that. The next exercise is to rotate this trapezoid just with <code>t.rotate()</code> in the <code>main()</code> class. So that it looks like:</p> <pre><code>--*********-- ---*******--- ----*****---- -----***----- </code></pre> <p>I have no idea how to do it. Can anybody give me a hint? Please, I don't want the solution here. Just a hint how i can solve it. Maybe it is better to refactor the draw method? I don't know...</p>
 

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