/*林姵語2022/10/24,java data type,資料型態*/ public class Main { public static void main(String[] args) { int myNum = 5; // 宣告整數integer (whole number),4位元組bytes float myFloatNum = 5.99f; // 浮點數=實數,floating point number,4位元組bytes double doubleNum = 5.99d; //倍精數,8位元組,8bytes,和long長整數 char myLetter = 'D'; char littlepig= 'g'; // 字元character=角色,2位元組bytes=16位元bits boolean myBool = true; // 布林boolean,1位元bit,0或1,false or true String myText = "林姵語"; // 字串String,非原型資料,長度變動 System.out.println(myNum); //系統的.輸出的.列印print且換列ln=line System.out.println(myFloatNum); System.out.println(myLetter); System.out.println(myBool); System.out.println(myText); myNum=myLetter;System.out.println(myNum); myNum=littlepig;System.out.println(myNum); for(int k=1;k