首頁猿問哪里錯誤，請問怎么修改呢？

哪里錯誤，請問怎么修改呢？

Java

qq_你今天真漂亮_04247659 2016-12-11 20:40:58

public class helloworld {? ??? ? //完成 main 方法? ? public static void main(String[] args) { helloworld hello = new helloworld();?? ? ? ? int maxScore=hello.getMaxAge(); // 輸出最大年齡 System.out.println("最大年齡為：" + maxScore);? }public int getMaxAge(){ ? ? ? 錯誤原因：Multiple markers at this line - This method must return a result of? type int - This method must return a result of? type int int []ages={18,23,21,19,25,29,17};? ? int max=ages[0];? ? for(int i=0;i<ages.length;i++){? ? ? ? if(ages[i]>max);? ? ? max=ages[i] ;? ? ? return max;? ? }哪里錯了呢，怎么修改

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3 回答

已采納

Bran_Zuo

TA貢獻(xiàn)3條經(jīng)驗獲得超1個贊

for循環(huán)里執(zhí)行return只是退出循環(huán)，但是getMaxAge方法并沒有返回語句，應(yīng)將return語句放在for循環(huán)外

public?class?helloworld?{
????public?static?void?main(String[]?args)?
????{
????????helloworld?hello?=?new?helloworld();?
????????int?maxScore=hello.getMaxAge();
????????//?輸出最大年齡
????????System.out.println("最大年齡為："?+?maxScore);?
????}
????public?int?getMaxAge()
????{
????????int?[]ages={18,23,21,19,25,29,17};
????????int?max=ages[0];
????????for(int?i=0;i<ages.length;i++)
????????{
????????????if(ages[i]>max);
???????????????max=ages[i]?;
????????}
????????return?max;
????}
}

反對回復(fù) 2016-12-12

Its_forever

TA貢獻(xiàn)361條經(jīng)驗獲得超328個贊

? ? ? return max;放到括號之后。

public?int?getMaxAge(){

int?[]ages={18,23,21,19,25,29,17};
????int?max=ages[0];
????for(int?i=0;i<ages.length;i++){
????????if(ages[i]>max);
??????max=ages[i]?;
??????
????}
????return?max;
????}

反對回復(fù) 2016-12-11