import javax.swing.* ; import java.util.*; public class EZLottery {  private static int allNum[]=new int[42];  public static void main ( String args [] ) {     for (int i=0;i < class="blue">//把42顆彩球裝箱       allNum[i]=++i;     }      String output="";     int[] luckyNum = getLuckyNum();     Arrays.sort(luckyNum);     for (int i = 0; i < luckyNum.length-1; i++) {       output += "【" + luckyNum[i] + "】";     }     JOptionPane.showMessageDialog ( null , output +       "特別號【" + luckyNum[6] +"】" );//秀出結果     System.exit ( 0 ) ;  }  private static int[] getLuckyNum() {  //將前七個彩球隨機打亂     int selectNum[] = new int[7];     for (int i = 0; i < selectNum.length; i++) {      int num = (int)(allNum.length * Math.random());      int tmp = allNum[i];      allNum[i] = allNum[num];      allNum[num] = tmp;     }     for (int i = 0; i < selectNum.length; i++) {      selectNum[i] = allNum[i];     }    return selectNum;    } }
 
 
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