奇偶數判斷按位運算符

public static void main(String[] args) {
//方式1
int num=6;
if(num%2 == 0){
System.out.println(num + "是偶數");
}else{
System.out.println(num + "是奇數");
}

//方式2 位運算 
if((num & 1) == 0){
System.out.println(num + "是偶數");
}else{
System.out.println(num + "是奇數");
}

}