java實(shí)現(xiàn)雙色球機(jī)選號(hào)碼生成器

import java.util.Random;
import java.util.Arrays; //操作數(shù)組的工具類(lèi)

/**
 * 雙色球號(hào)碼機(jī)選
 * 
 * @author Administrator
 *
 */
public class Lettery {

  public static void main(String[] args) {
    for (int i = 0; i < 5; i++) {
      int[] nos = create();
      // System.out.println(nos);
      System.out.println(Arrays.toString(nos));
    }

  }

  /**
   * 機(jī)選一注
   * 
   * @return
   */
  public static int[] create() {
    int[] nos = new int[7];
    Random r = new Random();

    LoopI: for (int i = 0; i < 6; ) {
      nos[i] = r.nextInt(32) + 1;
      // 先生成再用當(dāng)前數(shù)字與之前產(chǎn)生的數(shù)字比較找重復(fù)
      for (int j = 0; j < i; j++) {
        if (nos[i] == nos[j]) {
          // System.out.println("第" + (i + 1) + "數(shù)字:" + nos[i] + "與第" + (j + 1) + "個(gè)數(shù)字重復(fù)了");

          continue LoopI;
        }
      }

      i++;
    }

    nos[6] = r.nextInt(16) + 1;

     Arrays.sort(nos,0,6); //對(duì)數(shù)組的前6位排序
    return nos;
  }

  public static void printArray(int[] arrays) {
    for (int i = 0; i < arrays.length; i++) {
      System.out.print(arrays[i] + ", ");
    }
  }

}