forked from onlybooks/java-algorithm-interview
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathGenericExample.java
More file actions
31 lines (25 loc) · 836 Bytes
/
GenericExample.java
File metadata and controls
31 lines (25 loc) · 836 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
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);
}
}
}