無法解析爲變量？

Question

我想要編寫創建隨機法術效果的程序，但「長」不能被解析爲一個變量...

package Chaos; 

import java.util.Random; 

public class Effects { 
    public static void main(String[] args) { 

     String[] objects = { "Effect1", "Effect2", "Effect3", "Effect4" }; 

     int effect = objects.length; 

     for (int i = 0; 1 < length; i++) { 
      int rand = (int) (Math.random() * length); 
      System.out.print(objects[rand]); 
      System.out.print(" "); 
     } 
    } 
} 

Answer 1

你聲明的變量effect，不length：

int effect = objects.length; 

for (int i = 0; 1 < length; i++) // <-- You are using the wrong variable name here 

在你的代碼

Answer 2

製作以下變化：

 int effect = objects.length; 

    for (int i = 0; i < effect ; i++) { 

OR

String[] objects = { "Effect1", "Effect2", "Effect3", "Effect4" }; 

    for (int i = 0; i < objects.length; i++) {