Java has two kinds of exception: checked and runtime. : Exception « Statements « SCJP

1. SCJP
2. Statements
3. Exception

You are free to call methods that throw runtime exceptions, without enclosing the calls in try blocks.

public class MainClass{
    public static void main(String[] argv){
        int[] i = new int[3];
        
        System.out.println(i[10]);
    }
}

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 10
	at MainClass.main(MainClass.java:5)