public class Demo02 {
public static void main(String[] args) {
//八大基本数据类型
//整数
int num1 = 2147483647; //最常用
byte num2 = 127;
short num3 = 32767;
long num4 = 30L; //long类型要在数字后面加个L
//小数:浮点数
float num5 = 10.1F; //float类型要在数字后面加个F
double num6 = 3.141592653589793238462643;
//字符
char name = 'A'; //字符只能是一个字,比如A,任
//字符串,String不是关键字,它是一个类
String namea = "任全球";
//布尔值:代表是非
boolean flag = true;
//boolean flag = false;
System.out.println(num1);
System.out.println(num2);
System.out.println(num3);
System.out.println(num4);
System.out.println(num5);
System.out.println(num6);
System.out.println(name);
System.out.println(namea);
System.out.println(flag);
}
}