運行成功，輸出錯誤
public class HelloWorld{
? ? public static void main(String[] args) {
int age1=24;
int age2=18;
int age3=36;
int age4=27;
int sum=age1+age2+age3+age4;
int avg=(age1+age2+age3+age4)/4;
int minus=(age1-age2);
int newAge=age1++;
System.out.println("年齡總和："+sum);
? ? System.out.println("平均年齡："+avg);
System.out.println("年齡差值："+minus);
System.out.println("自減后的年齡："+newAge);
}
}
2021-06-02
public class HelloWorld{
? ? public static void main(String[] args) {
int age1=24;
int age2=18;
int age3=36;
int age4=27;
int sum=age1+age2+age3+age4;
int avg=(age1+age2+age3+age4)/4;
int minus=(age1-age2);
int newAge=age1--;
System.out.println("年齡總和："+sum);
System.out.println("平均年齡："+avg);
System.out.println("年齡差值："+minus);
System.out.println("自減后的年齡："+newAge);
}
}
2021-07-22
public class HelloWorld{
? ? public static void main(String[] args) {
int age1=24;
int age2=18;
int age3=36;
int age4=27;
int sum = age1+age2+age3+age4;
double avg = sum/4;
int minus = age1-age2;
int newAge = --age1;
? ? System.out.println("年齡總和："+sum);
? ? System.out.println("平均年齡："+avg);
System.out.println("年齡差值："+minus);
System.out.println("自減后的年齡："+newAge);
}
}