<awangdev>136. Single Number_1.java
public int singleNumber(int[] nums) {
        if (nums == null || nums.length == 0) return 0;
        int result = 0;
        for (int i : nums) {
            result = result ^ i;
        }
        return result;
    }
public int sample_funcname ( int [ ] var_0 ) {
  if ( var_0 == null || var_0 . length == 0 ) return 0 ;
  int var_4 = 0 ;
  for ( int var_5 : var_0 ) {
    var_4 = var_4 ^ var_5 ;
  }
  return var_4 ;
}
