java程式:1-50中選6個數字，且不得重覆

Question

java程式:1-50中選6個數字，且不得重覆利用陣列 謝謝 幫我一下

Answer 1

最佳解答

請參考我的做法

public static void main(String[] args) {

int[] ary = new int[6];

while (true) {

int x = (int)(Math.random() * 50) + 1;

boolean duplicated = false;

for (int i = 0; i < ary.length; i++) {

if (x == ary[i]) {

duplicated = true;

break;

} else if (ary[i] == 0) {

ary[i] = x;

break;

}

}

if (duplicated) continue;

if (ary[ary.length-1] != 0) break;

}

System.out.println(java.util.Arrays.toString(ary));

}