为什么执行不了displayMenus方法里的后三条语句呢?求解决,谢谢啦!
代码如下:
package chapter4;
public class Menu {
String names1,names2,names3,s1,s2,s3;
float price1,price2,price3;
public static void main(String[] args) {
String names1=new String("1.Manchurian----------");
String names2=new String("2.Fish Fry----------");
String names3=new String("3.Fried Rice----------");
float price[]={(float)30.0,(float)24.5,(float)19.5};
String s1=Float.toString(price[0]);
String s2=Float.toString(price[1]);
String s3=Float.toString(price[2]);
Menu obj=new Menu();
obj.displayMenus();
}
public void displayMenus()
{
System.out.println("*********** Printing Menu Details ************");
System.out.println(names1.concat(s1.concat("RMB")));
System.out.println(names2.concat(s2.concat("RMB")));
System.out.println(names3.concat(s3.concat("RMB")));
}
}
要求打印如下: