Sorting thru elements in an array

Ques: How does one sort in an array?

Ans:
      public int[] zeroFront(int[] nums) {
        //Method 1-->Arrays.sort(nums);
        int swap=0;
        for(int i=0;i<nums.length-1;i++){

            for(int j=i;j<nums.length;j++){
            if(nums[i]>nums[j]){
                swap=nums[i];
                nums[i]=nums[j];
                nums[j]=swap;
                           }
                     }
           }
        return nums;
    }