[英]How can I put a certain amount of integers in random locations in a 2d array?
[英]How can I compute and put the frequency of random integers in a arr[]?
我試圖編寫一種方法來計算[0 .... range)范圍內的num個隨機整數並將頻率放入arr []。
public static void doSingleTest(int[] arr, int num, int range){
for (int i=1; i<=num; i++){
int random = randomInteger(int a, int b);
arr[random]++;
}
也許您想初始化數組:
int[] arr = new int[range];
然后在您的方法中:
public static void doSingleTest(int[] arr, int num, int range){
for (int i = 1; i <= num; i++){
int r= randomInteger(0, range);
arr[r]++;
}
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