package day03;
public class Test03 {
//方法
public static void aa(int x,int y){
System.out.println(“x=”+x+”—y=”+y);
}
public static void a2(){
System.out.println(“这是一个无参数无返回值的方法”);
}
//返回值
public static double a3(){
return 3.141592657; //返回值
}
//返回值
public static int a4(int x,int y){
int num = x+y;
return num;
}
public static void a6(int age){
if(age>18){
return; //结束执行
}
System.out.println(“小于18”);
}
public static void main(String[] args){
aa(5,7);
a2();
System.out.println(a3());
System.out.println(a4(6,7));
a6(16);
}
}