/*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<10;k=k+3)
System.out.print(k+" ");
}
}
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