陳映年Java陣列 arrary長度

w3schools陣列array宣告:型態[ ]方括號corner brackets

//陳映年,2022/11/10,學習陣列,方法length
public class Main {
  public static void main(String[] args) {
    String[] cars = {"富豪","寶馬","福特","馬自達","勞斯萊斯"};
    int j;                             /* 宣告位元數 j */
    j = cars.length;                   /* 給定 j = 陣列 cars.長度 */
    System.out.println("陣列長度:"+ j );/* 方法印出來print */
    for (int i = 0; i < j; i++) 
       System.out.println(cars[i]);
    System.out.println("以下使用for-each迴圈輸出");
       for ( String i: cars)  /*將每一個cars陣列的項目items輸出*/
    System.out.println( i );
  }
}

截圖w3schools型態[ ]方括號corner brackets