標題:
陣列的長度
[打印本頁]
作者:
鄭繼威
時間:
2023-6-21 01:29
標題:
陣列的長度
利用
length
屬性, 可取得陣列的長度, 即該陣列包含了幾位成員.
int a[]={1,2,3,4};
int b[][]={{1,2,3,4},{1,2,3,4},{1,2,3,4}};
int c[][][]={{{1,2,3,4},{1,2,3,4},{1,2,3,4}},{{1,2,3,4},{1,2,3,4},{1,2,3,4}}};
上列三個陣列長度分別為何呢?
public class Ch41
{
public static void main(String args[])
{
int a[]={1,2,3,4};
int b[][]={{1,2,3,4},{1,2,3,4},{1,2,3,4}};
int c[][][]={{{1,2,3,4},{1,2,3,4},{1,2,3,4}},{{1,2,3,4},{1,2,3,4},{1,2,3,4}}};
System.out.println(a.length); //4
System.out.println(b.length); //3
System.out.println(c.length); //2
}
}
複製代碼
作者:
李彣
時間:
2023-6-21 20:23
public class B
{
public static void main(String[] args)
{
int a[]={1,2,3,4};
int b[][]={{1,2,3,4},{1,2,3,4},{1,2,3,4}};
int c[][][]={{{1,2,3,4},{1,2,3,4},{1,2,3,4}},{{1,2,3,4},{1,2,3,4},{1,2,3,4}}};
System.out.println(a.length);
System.out.println(b.length);
System.out.println(c.length);
}
}
複製代碼
作者:
黃裕恩
時間:
2023-6-21 20:24
public class R {
public static void main(String args[])
{
int a[]={1,2,3,4};
int b[][]={{1,2,3,4},{1,2,3,4},{1,2,3,4}};
int c[][][]={{{1,2,3,4},{1,2,3,4},{1,2,3,4}},{{1,2,3,4},{1,2,3,4},{1,2,3,4}}};
System.out.println(a.length);
System.out.println(b.length);
System.out.println(c.length);
}
}
複製代碼
作者:
林劭杰
時間:
2023-6-21 20:27
public class Ch01
{
public static void main(String args[])
{
int a[]={1,2,3,4};
int b[][]={{1,2,3,4},{1,2,3,4},{1,2,3,4}};
int c[][][]={{{1,2,3,4},{1,2,3,4},{1,2,3,4}},{{1,2,3,4},{1,2,3,4},{1,2,3,4}}};
System.out.println(a.length);
System.out.println(b.length);
System.out.println(c.length);
}
}
複製代碼
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