摘要:
package operator;public class Demo01 { public static void main(String[] args) { //二元运算符 //Ctrl+D:复制当前行到下一列 int a = 10; int b = 20; int c = 25; int d = 阅读全文
摘要:
public class Demo02 { public static void main(String[] args) { //八大基本数据类型 //整数 byte num = 20; //最常用 short num3 =30; long num4 =30l; //Long类型要在数字后面加L / 阅读全文