這段代碼為什么a1/a2不顯示我的賦值呢？
package xinGang;
public class Day_01_02{
??? public static void main(String[] args) {
??double heightAvg1=176.8;
??int heightAvg2=(int)heightAvg1;
??double a1=55.9;
??int a2=(int)a1;
??System.out.println(heightAvg1);
??System.out.println(heightAvg2);
??System.out.println("a1");
??System.out.println("a2");
?}
}
2016-08-29
System.out.println("a1");
??System.out.println("a2"); 是打印字符串
改成：
System.out.println(a1);
??System.out.println(a2);