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  1. DZone
  2. Coding
  3. Java
  4. Java Code Style: Operators and New Lines [Snippet]

Java Code Style: Operators and New Lines [Snippet]

Ever wonder whether operators should go on the current line or a new one? Let's see what the Google Java Style Guide has to say.

By 
Sebastian Daschner user avatar
Sebastian Daschner
·
Feb. 23, 18 · Code Snippet
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Last week, I discovered what helped me decide on what I have struggled with for a long time: whether to place operators such as &&, ||, or + on the same or next line.

When constructing boolean expressions or concatenating Strings, we might need to break long lines. According to the Google Java Style Guide, the break should come “before the symbol”, therefore:

String veryLong = "This is an example of a very, very, very, very, very, very, "
        + "very, very long String";

boolean found = strings.stream()
        .anyMatch(s -> s.startsWith("foo"));

if (someLogic() && someOtherLogic() && someMoreComplexLogic()
        || found)
    // ...


As you can see in this example, the +, ||, and also . operators are placed on the new line, before the next symbol. The exceptions to the rules are assignment operators, open parenthesis, commas, and lambda arrows.

I think this guide is consistent, makes sense and solves my problem to think about which one to go with over and over again

Operator (extension) Java (programming language)

Published at DZone with permission of Sebastian Daschner. See the original article here.

Opinions expressed by DZone contributors are their own.

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