Public? Static electricity Invalid? main(String[]？ args){

int？ Me? =? 1 1 1 1;

Double? f？ =? 1 1 1. 1 1 1;

//Method 1

Bull? b？ =? (int)I-I = = 0；

If (b){

system . out . println(" integer ")；

} Otherwise {

System.out.println ("non-integer");

}

Bull? c？ =? (int)f-f = = 0；

If (c){

system . out . println(" integer ")；

} Otherwise {

System.out.println ("non-integer");

}

//Method 2

if(i==(long)i){

system . out . println(" integer ")；

} Otherwise {

System.out.println ("non-integer");

}

if(f==(long)f){

system . out . println(" integer ")；

} Otherwise {

System.out.println ("non-integer");

}

}