Example 1:

String s = "Hello World 2023";
while (scanner.hasNext()) {
	if (scanner.hasNextInt()) {
		System.out.println("Found Int value :" + scanner.nextInt());
	}  
	else {
		System.out.println("Not found Int value :" + scanner.next());
	}
} 
scanner.close();

Output:
Not found Int value : Hello
Not found Int value : World
Found Int value : 2023

Example 2:

Scanner scan = new Scanner(System.in);
int a = scan.nextInt();
int b = scan.nextInt();
int c = scan.nextInt();
scan.close();
System.out.println(a);
System.out.println(b);
System.out.println(c);