int size = 50;
// Generates non-duplicated random numbers
int[] values = new int[51];
int[] list = new int[size];
for( int i = 0; i < 51; i++ )
values[i] = i;
Random rand = new Random();
int listSize = 0;
int myList = 0;
while( true )
{
int value = rand.nextInt(51);
if( values[ value ] == 0 )
continue; // number already used
list[ myList++ ] = value;
values[ value ] = 0;
if( myList == size || myList == 50 )
break;
}
// Displays non-duplicated random generated numbers
for(int element : list)
System.out.print(element + " ");
我想在每行的指定长度上设置一大堆数字,以使所有数字看起来像是在左右两侧的块中,即使是这样:
> 1 2 3 4 5 6 7 8 9 10
> 11 12 13 14 15 16 17 18 19 20
> 21 22 23 24 25 26 27 28 29 30
> 31 32 33 34 35 36 37 38 39 40
> 41 42 43 44 45 46 47 48 49 50
如何使用增强的for循环完成此操作?谢谢你的帮助!
答案 0 :(得分:0)
读取10值
后添加新行for(int i=0; i<list.length; i++){
System.out.printf(" %-2d",list[i]); //Format left justified
if ((i+1)%10==0){
System.out.println(); // Add a new line after 10
}
}