JAVA今日2021.7.28

JAVA数据类型

public class 数据类型 {
    public static void main(String[] args) {
        //整数
        byte a = 1;
        int b = 2;
        short c = 3;
        long d = 4L;//long后面要加L
        //浮点
        float e = 5.6F;//float后面要加F
        double f = 3.1415926;
        //字符
        char g = 'q';
        // String是类  String h = "Wal";
        //布尔值:是或非
        boolean flag = true;
        boolean siz = false;
    }
}

2021.7.28