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); }}
//第11行和第12行,println后面不加”=“;
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);
}}