java - "Insert AssignmentOperator expression"JAVA错误

Question

我不断收到错误“插入赋值运算符表达式来完成表达式”我的程序基本上是选择动物所在的随机位置。我也正在编写​​数组和变量，对吗？？？

问题出现在if语句中；具体代码为 giraffeLocation [r.nextInt(giraffeLocation.length)];

import java.util.Scanner;
import java.util.Random;

public class animaltracker {
    public static void main(String[] args){
            Scanner s = new Scanner(System.in);
            Random r = new Random();

            char giraffe;
            char rhino;
            char hipopotamus;

            String[] giraffeLocation;
            giraffeLocation = new String[3];
            giraffeLocation[0] = ("Africa");
            giraffeLocation[1] = ("Russia");
            giraffeLocation[2] = ("Germany");





            System.out.println("Welcome to the animal tracker!");
            try { Thread.currentThread().sleep(800); }
            catch ( Exception e ) { }

            System.out.println("Which animal shall we be tracking today?");
            try { Thread.currentThread().sleep(800); }
            catch (Exception e) { }

            System.out.println("\nGiraffe?\nRhino?\nHipopotamus?");
            String animal = s.nextLine();
                if(animal.equalsIgnoreCase("giraffe")){
                     **giraffeLocation [r.nextInt(giraffeLocation.length)];**

                    System.out.println("Your giraffe is in, " + giraffeLocation );
                }







        }
    }

Answer 1

您实际上并没有将随机位置的查找存储在任何地方，您想要这样的东西:

String tmp = giraffeLocation [r.nextInt(giraffeLocation.length)];

System.out.println("Your giraffe is in, " + tmp );