import?java.util.*;
public?class?HelloWorld?{
????//完成?main?方法
????public?static?void?main(String[]?args)?{
????????int[]?scores?=?{89,-23,64,91,119,52,73};
????????HelloWorld?hello?=?new?HelloWorld();
????????hello.sortScores(scores,5);
????????
????}
????
????//定義方法完成成績排序并輸出前三名的功能
????public?void?sortScores(int[]?scores,int?printNum)?{
????????if?(printNum<0?||?printNum>scores.length)?{
????????????print("Invalid?Print?Number!");
????????????return;
????????}
????????int?i?=?scores.length-1;
????????boolean?isOutOfIndex?=?false;
????????int[]?arrayOutput?=?new?int?[printNum];
????????Arrays.sort(scores);
????????for?(int?j=0;j<printNum;j++)?{
????????????if?((i-j)?<?0)?{
????????????????print("Too?many?Invalid?scores!");
????????????????isOutOfIndex?=?true;
????????????????break;
????????????}
????????????if?(scores[i-j]?>=0?&&?scores[i-j]?<=?100)?{
????????????????arrayOutput[j]?=?scores[i-j];
????????????}?else?{
????????????????j?=?j?-?1;
????????????????i?=?i?-?1;
????????????}
????????}
????????
????????if?(!isOutOfIndex)?{
????????????print("考試成績的前"+printNum+"名為：");
????????????print(arrayOutput);
????????}
????}
????
????public?static?void?print(String?msg)?{
????????System.out.println(msg);
????}
????
????public?static?void?print(int[]?numbers)?{
????????for?(int?i=0;i<numbers.length;i++)?{
????????????System.out.println(numbers[i]);
????????}
????}
}