what does : do in a loop in java code example

Example 1: for loop in java

// for loop in java
public class ForLoop
{
   public static void main(String[] args)
   {
      for(int x = 1; x <= 5; x++)
      {
         System.out.println(x);
      }
   }
}

Example 2: java loop

for (int i = 0; i < 10; i++) {
  System.out.println(i);
}