举例说明java中 list转换为其它类型数组的实现方式，即调用list的toArray函数。
1. 代码：
package com.myjava.test;
import java.util.ArrayList;
import java.util.List;
public class JavaTest {
/**
* @param args
*/
JavaTest t = new JavaTest();
public static void main(String[] args) {
test();
}
private static void test() {
List<model> list = new ArrayList<model>();
for (int ii = 0; ii< 3; ii++) {
model m= new model(ii + 5,"s1");
list.add(m);
}
final int size = list.size();
//test case1:
String[] arr = new String[size];
int intArr[] = new int[size];
for (int i = 0; i< size; i++) {
arr[i] = list.get(i).str;
intArr[i] = list.get(i).i;
}
for (int j = 0; j< arr.length; j++) {
System.out.print(intArr[j] + ", "+ arr[j] + ";");
}
System.out.print("\n\n");
//test case2:
model[] modelArr = list.toArray(new model[size]);
for (int k = 0; k< modelArr.length; k++) {
System.out.print(modelArr[k].i + ", " + modelArr[k].str+ ";");
}
}
static class model {
int i;
String str;
model(int i, String s) {
this.i = i;
this.str = s;
}
};
}
2. 测试结果：
5, s1;6, s1;7, s1;
5, s1;6, s1;7, s1;