更新client ip属性
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@@ -1,5 +1,6 @@
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package cn.ac.iie;
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import java.util.ArrayList;
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import java.util.Arrays;
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public class ArrayTest {
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@@ -8,6 +9,17 @@ public class ArrayTest {
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long[] longs1 = new long[7];
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System.arraycopy(longs, 0, longs1, 1, longs.length - 1);
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longs1[0] = 8;
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System.out.println(Arrays.toString(longs1));
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// System.out.println(Arrays.toString(longs1));
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ArrayList<Long> longs2 = new ArrayList<>();
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longs2.add(3L);
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longs2.add(34L);
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longs2.add(312L);
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longs2.add(12433L);
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longs2.add(34L);
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longs2.add(4124L);
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System.out.println(longs2.subList(0,3).size());
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System.out.println(longs2.subList(0,3).get(3));
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}
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}
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