java if语句
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");
}
}
