arrays - How to take multiple integers as single input separated by space in java, then break them into integers? -

need take input 1 2 3 or of length separated space break separate integers. have tried array, strings , charat() , string.split() method not working.

input can 1 2 3 4 or 1 2 or of length, need separate 1,2,3 integers.

i have tried far:

class cube{    public static void main(string args[]){      int i,j=0,sum=0; int arr[]=new int[10];      scanner scan=new scanner(system.in);      string s=scan.nextline();      int len =s.length();      for(i=0;i<=len;i++){          string[] str=s.split(" ");          int i=str[j]; sum+=math.pow(3,i); j++;      }    }  } 

you not parsing string int. need use integer.parseint(). also, use of bufferedreader preferred.

class cube{    public static void main(string args[]){      int i,j=0,sum=0; int arr[]=new int[10];      scanner scan=new scanner(system.in);      string s=scan.nextline();       string[] str=s.split(" ");     for(i=0;i<=str.length;i++){          int temp = integer.parseint(str[i]);         sum+=math.pow(3,temp);      }    }  }