参考答案
答案:public class a{static double Max(double x,double y){?? double t;if(x>=y){t=x;}else{ t=y;???? }return t;}public static void main(String[] args){double x,y,m;x=549.265;y=56.28;m =Max(x,y);System.out.println("最大数是"+m);System.out.println("x="+x+"y="+y);if(m>=x&&y<=m){System.out.println("ture");}else{System.out.println("flase");}}}