JavaIf.java

var random = new Random();
var randomNumber = random.nextInt();
var message = "Number is {0}";
String sign;

if (randomNumber > 0) {
    sign = "positive";
} else if (randomNumber < 0) {
    sign = "negative";
} else {
    sign = "zero";
}

System.out.println(MessageFormat.format(message, sign));