public class MainClass {
public static void main(String[] args) {
String s1 = "Java";
String s2 = "Java";
if (s1.equals(s2)) {
System.out.println("==");
}
}
}
Sometimes you see this style.
if ("Java".equals (s1))
In the following code, if s1 is null, the if statement will return false without evaluating the second expression.
if (s1 != null && s1.equals("Java"))