ruler-ruler.html

来自「经典的数据结构源代码(java 实现)」· HTML 代码 · 共 36 行

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<html><head><title>Code Fragment</title></head><body text=#000000><center></center><br><br><dl><dd><pre>						<font color=#ff0080>// draw a tick with no label </font><font color=#8000a0>public</font> <font color=#8000a0><font color=#8000a0>static</font> </font><font color=#8000a0>void</font> <font color=#0000ff>drawOneTick</font>(<font color=#8000a0>int</font> tickLength) { <font color=#0000ff>drawOneTick</font>(tickLength, -1); }						<font color=#ff0080>// draw one tick </font><font color=#8000a0>public</font> <font color=#8000a0><font color=#8000a0>static</font> </font><font color=#8000a0>void</font> <font color=#0000ff>drawOneTick</font>(<font color=#8000a0>int</font> tickLength, <font color=#8000a0><font color=#8000a0>int</font> </font>tickLabel) {  <font color=#ff8000>for</font><font color=#0000ff> </font>(<font color=#8000a0>int</font> i = 0; i &lt; tickLength; i++)    System.out.<font color=#0000ff>print</font>(<font color=#008000>"-"</font>);  <font color=#ff8000>if</font><font color=#0000ff> </font>(tickLabel &gt;= 0) System.out.<font color=#0000ff>print</font>(<font color=#008000>" "</font> + tickLabel);  System.out.<font color=#0000ff>print</font>(<font color=#008000>"\n"</font>);}<font color=#8000a0>public</font> <font color=#8000a0><font color=#8000a0>static</font> </font><font color=#8000a0>void</font> <font color=#0000ff>drawTicks</font>(<font color=#8000a0>int</font> tickLength) {	<font color=#ff0080>// draw ticks of given length</font>  <font color=#ff8000>if</font><font color=#0000ff> </font>(tickLength &gt; 0) {				<font color=#ff0080>// stop when length drops to 0</font>    <font color=#0000ff>drawTicks</font>(tickLength-1);			<font color=#ff0080>// recursively draw left ticks</font>    <font color=#0000ff>drawOneTick</font>(tickLength);			<font color=#ff0080>// draw center tick</font>    <font color=#0000ff>drawTicks</font>(tickLength-1);			<font color=#ff0080>// recursively draw right ticks</font>  }}<font color=#8000a0>public</font> <font color=#8000a0><font color=#8000a0>static</font> </font><font color=#8000a0>void</font> <font color=#0000ff>drawRuler</font>(<font color=#8000a0>int</font> nInches, <font color=#8000a0><font color=#8000a0>int</font> </font>majorLength) {	<font color=#ff0080>// draw ruler</font>  <font color=#0000ff>drawOneTick</font>(majorLength, 0);			<font color=#ff0080>// draw tick 0 and its label</font>  <font color=#ff8000>for</font><font color=#0000ff> </font>(<font color=#8000a0>int</font> i = 1; i &lt;= nInches; i++) {    <font color=#0000ff>drawTicks</font>(majorLength-1);			<font color=#ff0080>// draw ticks for this inch</font>    <font color=#0000ff>drawOneTick</font>(majorLength, i);		<font color=#ff0080>// draw tick i and its label</font>  }}</dl></body></html>

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