void (String[] args) { <warning descr="Braces around this statement are unnecessary">{</warning> System.out.println("3"); } { int a; } <warning descr="Braces around this statement are unnecessary">{</warning> int b; } <warning descr="Braces around this statement are unnecessary">{</warning> <warning descr="Braces around this statement are unnecessary">{</warning> int a; } } }