Answers for "Divisible by 3 5 15"

Divisible by 3 5 15

Numbers -- Divisible by 3, 5, 15
Write a program that can print the numbers between 1 ~ 100 that can be 
divisible by 3, 5, and 15.
if the number can be divisible by 3, 5 and 15, then it should only be
displayed in DivisibelBy15' section
if the number can be divisible by 3 but cannot be divisible by 15, 
then it should only be displayed in DivisibelBy3' section
if the number can be divisible by 5 but cannot be divisible by 15, 
then it should only be displayed in DivisibleBy5' section
 
Solution 1:
public static void main(String[] args) {
String divisibleBy15 ="";
String divisibleBy5 ="";
String divisibleBy3="";
int[] arr = new int[100];
for(int i=0; i < arr.length; i++)
arr[i] = i+1;
 
for(int each: arr) {
if(each %15==0 && each %3==0)
divisibleBy15+= each+" ";
if(each %5==0 && each % 15!=0)
divisibleBy5 += each+" ";
if(each%3==0 && each %15!=0)
divisibleBy3 += each+" ";
}
System.out.println("Divisible By 15: "+divisibleBy15);
System.out.println("Divisible By 5: "+divisibleBy5);
System.out.println("Divisible By 3: "+divisibleBy3);
}
 
Solution 2:
public static void main(String[] args) {
String divisibleBy15 ="";
String divisibleBy5 ="";
String divisibleBy3="";
List<Integer> list = new ArrayList<Integer>();
for(int i=0; i < 100; i++)
list.add(i+1);
 
for(int each: list) {
if(each %15==0 && each %3==0)
divisibleBy15+= each+" ";
if(each %5==0 && each % 15!=0)
divisibleBy5 += each+" ";
if(each%3==0 && each %15!=0)
divisibleBy3 += each+" ";
}
System.out.println("Divisible By 15: "+divisibleBy15);
System.out.println("Divisible By 5: "+divisibleBy5);
System.out.println("Divisible By 3: "+divisibleBy3);
}
 
Solution 3:
 
public static void main(String[] args) {
List<Integer> list = new ArrayList<Integer>();
for(int i=0; i < 100; i++)
list.add(i+1);
 
System.out.print("Divisible By 15: ");
list.forEach( p -> { if(p%15==0 && p%3==0) System.out.print(p+" "); } ) ;
System.out.print("\nDivisible By 5: ");
list.forEach( p -> { if(p%5==0 && p%15!=0) System.out.print(p+" "); } ) ;
System.out.print("\nDivisible By 3: ");
list.forEach( p -> { if(p%3==0 && p%15!=0) System.out.print(p+" "); } ) ;
}