Java入門–Arrays.asListで配列からListへ変換する

2017年2月2日

Javaコード:
import java.util.Arrays;
import java.util.List;

public class ArrayToListDemo {

public static void main(String[] args) {
String[] s = {“testAA","testBB","testCC"};
List<String> strlist = Arrays.asList(s);
for(String str:strlist){
System.out.println(str);
}
System.out.println(“***************");
int[] i ={87,88,89};
@SuppressWarnings(“rawtypes")
List intlist = Arrays.asList(i);
for(Object o:intlist){
System.out.println(o.toString());
}
System.out.println(“***************");
Integer[] ob = {87,88,89};
List<Integer> oblist = Arrays.asList(ob);
for(int a:oblist){
System.out.println(a);
}
System.out.println(“***************");

}

}
実行結果:
testAA
testBB
testCC
***************
[I@52e922
***************
87
88
***************