林葆蕙程式設計HTML.CSS.JavaScript.Java

/*林葆蕙2022/10/24Java變數variable資料type型態*/ public class Main { public static void main(String[] args) { int i; /*註解java, JavaScript, CSS*/ int myNum = 5; //宣告整數integer(whole number) float myFloatNum = 5.99f; //宣告浮點數floating point number, 4 bytes=32 bits,4位元組 char myLetter = '龍'; //宣告字元character, 2 bytes=16 bits,2位元組 boolean myBool = true; //宣告布林boolean, 1 bit,1位元 String myText = "劉任昌"; //宣告字串String i = myLetter; //整數i=字元'龍' System.out.println(myLetter + "字碼unicode 10進位" + i); System.out.println(myNum); System.out.println(myFloatNum); System.out.println(myLetter); System.out.println(myBool); System.out.println(myText); } }