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Demo4.java</font>
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<pre><span class="s0">package </span><span class="s1">util</span><span class="s0">;</span>

<span class="s0">import </span><span class="s1">java.util.Scanner</span><span class="s0">;</span>
<span class="s0">public class </span><span class="s1">Demo4 {</span>
    <span class="s0">public static void </span><span class="s1">main(String[] args) {</span>
        <span class="s1">System.out.println(</span><span class="s2">&quot;请输入五个成绩&quot;</span><span class="s1">)</span><span class="s0">;</span>
        <span class="s0">int</span><span class="s1">[] a = </span><span class="s0">new int</span><span class="s1">[</span><span class="s3">5</span><span class="s1">]</span><span class="s0">;</span>
        <span class="s1">Scanner input = </span><span class="s0">new </span><span class="s1">Scanner(System.in)</span><span class="s0">;</span>
        <span class="s0">for </span><span class="s1">(</span><span class="s0">int </span><span class="s1">x = </span><span class="s3">0</span><span class="s0">; </span><span class="s1">x &lt; </span><span class="s3">5</span><span class="s0">; </span><span class="s1">x++) {</span>
            <span class="s0">int </span><span class="s1">b = a[x] = input.nextInt() </span><span class="s0">;</span>
            <span class="s0">while</span><span class="s1">(b&lt;</span><span class="s3">0</span><span class="s1">|b&gt;</span><span class="s3">100</span><span class="s1">){</span>
                <span class="s1">System.out.println(</span><span class="s2">&quot;成绩有误，不列入计算&quot;</span><span class="s1">)</span><span class="s0">;</span>
                <span class="s1">x--</span><span class="s0">;</span>
                <span class="s0">break;   </span>
            <span class="s1">}</span>
        <span class="s1">}</span>
        <span class="s0">int </span><span class="s1">sum = </span><span class="s3">0</span><span class="s0">;</span>
        <span class="s0">for </span><span class="s1">(</span><span class="s0">int </span><span class="s1">i = </span><span class="s3">0</span><span class="s0">; </span><span class="s1">i &lt; a.length</span><span class="s0">; </span><span class="s1">i++) {</span>
            <span class="s1">sum += a[i]</span><span class="s0">;</span>
        <span class="s1">}</span>
        <span class="s1">System.out.println(</span><span class="s2">&quot;该成绩之和为：&quot;</span><span class="s1">+sum)</span><span class="s0">;</span>
    <span class="s1">}</span>
<span class="s1">}</span>

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