写错了;应该是
class DemoArrays{
public static void main(String[] args){
String[] temp=null;
Arrays.fill(temp,"张三1");
Arrays.fill(temp,"张三2");
Arrays.fill(temp,"张三3");
Arrays.fill(temp,"张三4");
for (int i=0;i<temp.length;i++){
System.out.println(temp[i]);
}
}
}
这样的用法正确吗?
class DemoArrays{
public static void main(String[] args){
String[] temp=null;
Arrays.fill(temp,"张三1");
Arrays.fill(temp,"张三2");
Arrays.fill(temp,"张三3");
Arrays.fill(temp,"张三4");
for (int i=0;i<temp.length;i++){
System.out.println(temp[i]);
}
}
}
这样的用法正确吗?
改成
String[] temp=new String[10]; 给数组分配空间