arrayList的插入和读取
package
com.arraylist.test;
import
java.util.ArrayList;
import
java.util.Iterator;
import
java.util.List;
public
class
arrayListTest {
public
static
void
main(String args[]) {
List<String> list =
new
ArrayList<String>();
list.add(
"test1"
);
list.add(
"test2"
);
// 方法1
Iterator it1 = list.iterator();
while
(it1.hasNext()) {
System.
out
.println(it1.next());
}
// 方法2
for
(Iterator it2 = list.iterator(); it2.hasNext();) {
System.
out
.println(it2.next());
}
// 方法3
for
(String tmp : list) {
System.
out
.println(tmp);
}
// 方法4
for
(
int
i = 0; i < list.size(); i++) {
System.
out
.println(
"method4"
);
System.
out
.println(list.get(i));
}
System.
out
.println(
"And then Jim said, who's at the door"
);
}
}
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