spot7.org logo
Home PHP C# C++ Android Java Javascript Python IOS SQL HTML Categories

Compare values of return type Boolean and Integer


There's a shorter way to write it:

Instead of:

if (BServer.y.equals(new Integer(1))) {
    return true;
} else {
    return false;
}

write :

return (BServer.y == 1) ? true : false;

Categories : Java

Related to : Compare values of return type Boolean and Integer
What does return; in a C function of boolean return type return?
This is undefined behavior, a return statement without an expression shall only be used in a function whose return type is void. This is covered in the draft C99 standard section 6.8.6.4 The return statement: [...]A return statement without an expression shall only appear in a function whose return type is void. Interestingly this is an error by default when using clang but gcc without any

Categories : C
Unable to return NULL in a function that expects an integer return type
If the return type is int, you can't return a NULL. To show an error, you could instead return a special value like zero or -1, if you check for that value in any calling function. Lots of functions return nonnegative numbers on success, or -1 on error. NULL cannot be stored in an int variable, unlike in SQL, for example. If you ignore the warning and return NULL anyway, then NULL will be casted

Categories : C
Boolean Method does not return false
Always use == when you need to compare , which means equality in Java, while = means assignment. This is different from some language like PL/SQL. So when you call while(choice =false), Java only assigns false to variable choice , it does not compare the choice with false. You should use while(choice==false) instead, the same in if (choice == true) Check operators for more details

Categories : Java
Left outer join - how to return a boolean for existence in the second table?
A CASE or COALESCE statement with an outer join IS the proper way to do this. select CASE WHEN b.id IS NULL THEN true ELSE false END AS banned, u.id, u.first_name, u.last_name, u.city, u.last_ip, to_char(u.login, 'DD.MM.YYYY') as day from pref_users u left outer join pref_ban2 b on u.id=b.id limit 10;

Categories : Postgresql
Compare one element from one table in another one and return column
Here's one way to go about it: d <- read.table(text=' V1 V2 V3 V4 V5 V6 V7 1 1 a 2.0 3.0 4.0 9.0 6.0 2 1 b 0.2 0.1 0.8 0.9 0.2 3 1 c 0.1 0.3 0.4 0.1 0.8 4 1 d 0.1 0.1 0.3 0.1 0.4 5 2 a 1.0 2.0 3.0 4.0 5.0 6 2 b 0.1 0.4 0.3 0.5 0.7 7 2 c 0.1 0.4 0.2 0.5 0.8 8 2 d 0.2 0.5 0.6 0.7 0.9 9 3 a 8.0 2.0 3.0 4.0 5.0 10 3 b 0.1 0.4 0.3 0.5 0.7 11 3 c 0.1 0.4 0.2 0.5

Categories : R
Recently Add
Concurrent collection to 50/50 read/write
How to get unique members of object class (groupofUniqueNames) from an ldap server using java
Custom error reporting: how to log down function arguments (and possibly locals) in an exception handler?
Websphere MQ message redelivery
How to use BigDecimal to achieve following code instead of using double or float?
What exactly do the service() method of this HttpServlet?
Why does the Java API use int instead of short or byte?
Hibernate. One to one mapping without cross references
How to pass array to a java method
BooleanFieldEditor doesn't load value from PreferenceStore
NoClassDefFoundError when I call the class through commnad line
Shopizer Search
Java - Bank System + Transaction Function
Hadoop security using Apache DS / Apache Directory Studio
Multiple property-placeholder with overlapping locations does not work?
could not remove/add jpanel in jframe
Java garbage collection verbose not working
If child class has a variable with same name as private variable in parent what will be used?
Jackson parse json with a one-to-many relationship in a single step
Excel opens wrong view after generating in Apache POI
On Switch How to use logic operator on case JAVA
Java: What is the absolut first second in Calendar?
Waiting One Second for a button click, if button not clicked call function
Fastest way to extract part of a large JSON File
copy directory operation using linux command in java
Figuring out how to Format Printing
Why does @FunctionalInterface have a RUNTIME retention?
Collision detection Libgdx rectangles
Cannot find symbol in method changeRecL but declared in main method
Receiving "java.net.SocketException: Connection reset" when connecting from dotnet client to a java server
© Copyright 2017 spot7.org Publishing Limited. All rights reserved.