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GenericExample.java

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package ch02;

import java.util.ArrayList;

import java.util.List;

public class GenericExample {

public static void main(String[] args) {

List listNames1 = new ArrayList();

listNames1.add("카리나");

listNames1.add("윈터");

listNames1.add("지젤");

listNames1.add("닝닝");

String name0 = (String) listNames1.get(0);

listNames1.add(34);

// String name4 = (String) listNames1.get(4); // 에러 발생

// ---

List<String> listNames2 = new ArrayList<String>();

listNames2.add("카리나");

listNames2.add("윈터");

listNames2.add("지젤");

listNames2.add("닝닝");

// listNames2.add(34); // 에러 발생

for (String name : listNames2) {

System.out.println(name);

}

}

}