30 lines
717 B
Java
30 lines
717 B
Java
package chapter6;
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import java.util.ArrayList;
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import java.util.Iterator;
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public class Example23 {
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public static void main(String[] args) {
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// 存放字符串的集合
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ArrayList<String> names = new ArrayList<String>();
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names.add("张三"); // √ 正确
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Iterator it1 = names.iterator();
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while (it1.hasNext()) {
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String name = (String) it1.next();
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System.out.println(name);
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}
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ArrayList students = new ArrayList();
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names.add("张三");
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Iterator it2 = students.iterator();
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while (it2.hasNext()) {
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String student = (String) it2.next();
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System.out.println(student);
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}
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}
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}
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