public class HelloWorld {
??? public static void main(String[] args) {
??int age=25;
?if (age>60){
???? System.out.println("老年");
?}
?else if (age>40){
??????? System.out.println("中年");
??? }
??? else if (age>18)
??????? System.out.println("少年");
??? }
??? else {
??????? System.out.println("童年");
??? }
??}
}