List< String> list = ["item"];  

String item = list[0];  

Set< String > set = {"item"};  

Map< String,Integer > map = {"key" : 1};  

int value = map["key"];

BufferedReader br = new BufferedReader(new FileReader(path));  

try {  

   return br.readLine();  

} finally {  

   br.close();  

}

try (BufferedReader br = new BufferedReader(new FileReader(path)) {  

   return br.readLine();  

}

Map<String,String> hello = new HashMap<>();

int billion = 1_000_000_000;

String availability = "available";  

switch(availability) {  

 case "available":  

    //code  

    break;  

  case "unavailable":  

    //code  

    break;  

  case "merged":  

    //code  

  default:  

    //code  

    break;  

}

int binary = 0b1001_1001;

try {  

Here comes your code....  

}  

catch(IOException | NullPointerException | ..........) {  

}