sum 这里加上类型为什么会报错?
sum = age1 +age2+age3+age4;
double avg = sum / 4;
int minus =age1 - age2;
int newAge =--age1;
sum = age1 +age2+age3+age4;
double avg = sum / 4;
int minus =age1 - age2;
int newAge =--age1;
2017-05-26
public class HelloWorld{
public static void main(String[] args) {
int age1=24;
int age2=18;
int age3=36;
int age4=27;
int sum;
sum = age1 +age2+age3+age4;
double avg = sum / 4;
int minus =age1 - age2;
int newAge =--age1;
System.out.println("年龄总和:"+sum);
System.out.println("平均年龄:"+avg);
System.out.println("年龄差值:"+minus);
System.out.println("自减后的年龄:"+newAge);
}
}
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