package com.zero;
public class Notebeforemidexam {
public static void main(String[] args) {
}
}
/*
public static void main(String[] args) {
Person p = new Person();
p.sayyy("All Hail Lelouch!");
}
物件導向
public void sayyy(String wordsss) {
System.out.println(wordsss);
}
*/
/*
short total = 286;
boolean adaut = false;
float weight = 69.5f;
int age = 19;
System.out.println(age);
//show 19
age = 20;
System.out.println(age);
//show 20
int age = 19;
System.out.println(age > 18);
//show true
*/
/*
if(scorce >= 90 ) {
System.out.println("A");
}else {
if(scorce >= 80 ) {
System.out.println("B");
}else {
if(scorce >= 70)
System.out.println("C");
}
}
*/
/*
public static void main(String[] args) {
Student stu = new Student();
stu.scorce = 81;
System.out.println(stu.getGrade());
}
物件導向
int scorce;
//用string是因為要return字串
public String getGrade(){
String result = "F";
if (scorce >= 90) {
result = "A";
} else if (scorce >= 80) {
result = "B";
} else if (scorce >= 70) {
result = "C";
} else if (scorce >= 60) {
result = "D";
}
return result;
}
*/
/*
public static void main(String[] args) {
Bmicounter bmic = new Bmicounter();
bmic.hieght = 1.7;
bmic.weight = 66.5;
System.out.println("Your BMI is:"+bmic.getBMI());
}
物件導向
double hieght;
double weight;
//用double是因為要returng數字
public double getBMI(){
double BMI = weight/(hieght*hieght);
return BMI;
}
*/
/*法二:Bmicounter bmic = new Bmicounter(1.7,66.5);
物件導向改成:
double height;
double weight;
public Person (double heighttt,double weighttt) {
this.height = heighttt;
this.weight = weighttt;
//this.可省略
*/
/*
Student stu = new Student(66);
物件導向
int scorce;
public Student (int n) {
scorce = n;
}
*/
/*
public static void main(String[] args) {
long m = 1;
for(int i = 0 ;i<128 ; i=i+1) {
m = m*2;
System.out.println("2的" + (i+1) + "次方:" +m);
}
System.out.println("end");
}
*/
平常練習的JAVA語言~