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I created a project, it asked me to select JDK version and finish.
I couldn't find system namespace in autocomplete.
I typed it manually but IDEA told me that system doesn't exist.
238
println does not print to the console, it prints to the standard output stream ( System. out is Java's name of the standard output stream). The standard output stream is usually the console, but it doesn't have to be. The Java runtime just wraps the standard output stream of the operating system in a nice Java object.
The println() method is similar to print() method except that it moves the cursor to the next line after printing the result. It is used when you want the result in two separate lines. It is called with "out" object. If we want the result in two separate lines, then we should use the println() method.
println() is used to print an argument that is passed to it. The statement can be broken into 3 parts which can be understood separately as: System: It is a final class defined in the java. lang package.
System. out. println is an IO-operation and therefor is time consuming. The Problem with using it in your code is, that your program will wait until the println has finished.
It's System (with a cap)
Some very useful shortcuts:
soutm (+TAB) ==> System.out.println("Class.And.Method.Name") soutv (+TAB) ==> System.out.println("Last variable used = " + value); sout (+TAB) ==> System.out.println(); I really love IntelliJ. Glad I moved to it from Eclipse a couple of years ago ;)
159
Just type sout.
public class Main {
public static void main(String[] args) {
int data = 1;
System.out.println(); ===>sout
System.out.println("Main.main"); ===>soutm
System.out.println("args = [" + args + "]"); ===>soutp
System.out.println("data = " + data); ===>soutv
}
}
sout - just print System.out.println()
soutm - added Class name & method name
soutp - added parameter
soutv - added last variable name
40
We can change the auto complete settings to to ignore case. Go to:
File -> Settings... -> IDE Settings -> Editor -> Code Completion
and change 'Case sensitive completion' to 'None'.
37
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