顯示25行錯(cuò)誤HelloWorld.java:25: error: cannot find symbol System.out.println(scores[i]); ^ symbol: variable i location: class HelloWorld 1 error
import?java.util.Arrays;
public?class?HelloWorld?{
????
????//完成?main?方法
????public?static?void?main(String[]?args)?{
?????????int?scores?[]?=?{89,-23,64,91,119,52,73};
?????????System.out.println("考試的前三名是:");
?????????HelloWorld?chang?=?new?HelloWorld();
???????????/*表明是一個(gè)新的類的對(duì)象*/
??????????chang.showTop3(scores);
?????}
????
????//定義方法完成成績(jī)排序并輸出前三名的功能
????public?void?showTop3?(int[]scores){
??????Arrays.sort(scores);
??????int?num=0;/*初始話最好為零,用來保存用戶數(shù)值*/
??????for(int?i?=scores.length-1;i>=0;i--??){
??????????if(scores[i]<0||scores[i]>100){
?????????????continue;?
??????????}
??????????num++;
??????????if?(num>3);
??????????break;
??????}
????System.out.println(scores[i]);
????}
}
2020-04-26
你錯(cuò)誤的System.out.println(scores[i]);這行,是因?yàn)橛?jì)算機(jī)沒有抓取到Scores這個(gè)數(shù)組變量。說明你上面的數(shù)組名聲明有問題,public?void?showTop3?(int[]scores)沒有間隔
2020-04-16
變量i 是在for 語句里面定義的,作用域就在for語句里面。出了for語句,變量i 就是未定義的
2020-04-12
循環(huán)里的i不能拿出來用
2020-04-12
把輸出語句要放到循環(huán)里
2020-04-12
public?void?showTop3?(int[]scores) 改為public?void?showTop3?(int[] scores)