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<div align="center" class="title">JAVA程序員必讀：基礎(chǔ)篇（4）對象和簡單數(shù)據(jù)對象</div>
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<div align="center"><font color="#666666">編譯：ZSC/太平洋網(wǎng)絡(luò)學(xué)院</font></div>
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<p class="article"><b>對象和簡單數(shù)據(jù)對象</b></p>
<p></p>
<p class="article"><b>4.4.4 復(fù)制數(shù)組</b></p>
<p class="article"> 使用系統(tǒng)的arraycopy方法來有效地從一個數(shù)組復(fù)制數(shù)據(jù)到另外一個數(shù)組中去。這個arraycopy方法需要5個參數(shù)：
</p>
<p class="article">public static</p>
<p class="article"> void arraycopy(Object source,</p>
<p class="article"> int srcIndex,</p>
<p class="article"> Object dest,</p>
<p class="article"> int destIndex,</p>
<p class="article"> int length）</p>
<p class="article"> 其中兩個Object參數(shù)指定了從哪個數(shù)組復(fù)制以及要復(fù)制到哪個數(shù)組。三個整型參數(shù)指示了每個源數(shù)組和目標(biāo)數(shù)組的開始位置，以及要復(fù)制的元素的數(shù)目。如圖20所示說明了復(fù)制是如何發(fā)生的：
</p>
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<p class="article">（圖20）</p>
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