system.out

Print a carriage return in java on windows on console

泪湿孤枕 提交于 2019-12-05 01:23:57
On my OS X machine, the following line gives me a nice and easy way to track the state of my loops: for (int index = 0; index < 100; index++) for (int subIndex = index; subIndex < 100; subIndex++) System.out.print("\r" + index + "/" + subIndex + " "); But when I try to run the same thing on windows, it prints out newlines instead of a carriage return. How can I achieve the same simple method of tracking the process on windows? I had the statement and it worked in the command prompt System.out.println("This is Java"+'\r'+"That"); and gives me output as That is Java That means it works perfectly

What is the type of System.out in Java?

让人想犯罪 __ 提交于 2019-12-04 09:15:02
I am just a newbie in Java. I was wondering the way System.out.println() is used. Out is a static field inside System class. The type of out is PrintStream . But when I saw the constructor of PrintStream class, it takes a parameter of type OutputStream and as far as I know we cannot create the object of an abstract class. In that case we must pass some subclass's object to the constructor of PrintStream . What is that class? Same is the System.in . It is also InputStream 's reference but what is the type of object it points to as the InputStream is abstract? PrintStream wraps

How to set a string's color [closed]

こ雲淡風輕ζ 提交于 2019-12-04 08:07:36
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 5 years ago . Does anyone know how I would set the color of a string that will be printed using System.out ? This is the code I currently have: System.out.println("TEXT THAT NEEDS TO BE A DIFFERENT COLOR."); 回答1: Console See the Wikipedia page on ANSI escapes for the full collection of

Error in System.out.println

雨燕双飞 提交于 2019-12-04 05:27:16
问题 Is there any error in the following code? It shows cant find symbol, symbol: class out location: class System. In the log, it show a lot of errors, including java.lang.ClassFormatError: Method "" in class Area has illegal signature "(Ljava/lang/Object;)Ljava/lang/System$out$println;" import java.util.*; class Area { double pi=3.14; Scanner sc=new Scanner(System.in); System.out.println("Enter the value of r"); int r=sc.nextInt(); System.out.println("enter the value h"); int h=sc.nextInt();

difference between System.out.println() and System.err.println()

末鹿安然 提交于 2019-12-03 01:19:40
问题 What is the difference between System.out.println() and System.err.println() in Java? 回答1: In Java System.out.println() will print to the standard out of the system you are using. On the other hand, System.err.println() will print to the standard error. If you are using a simple Java console application, both outputs will be the same (the command line or console) but you can reconfigure the streams so that for example, System.out still prints to the console but System.err writes to a file.

Java code needs a system.out.println statement to run [duplicate]

泪湿孤枕 提交于 2019-12-02 23:49:31
问题 This question already has an answer here : Loop doesn't see value changed by other thread without a print statement (1 answer) Closed 4 years ago . I wanted to know if anyone else experienced this problem. This one portion of code in my game relies on a system.out.println statement to work. without it, it won't function properly while(isladder){ t = Map.tiles[(int) (Player.x + 15 + ScrollManager.xoffset) / 32][(int) ((Player.y ) + ScrollManager.yoffset) / 32]; if(t.row == 3 && t.col == 5){

How to set a string's color [closed]

限于喜欢 提交于 2019-12-02 20:43:49
Closed . This question needs to be more focused. It is not currently accepting answers. Learn more . Want to improve this question? Update the question so it focuses on one problem only by editing this post . Does anyone know how I would set the color of a string that will be printed using System.out ? This is the code I currently have: System.out.println("TEXT THAT NEEDS TO BE A DIFFERENT COLOR."); Console See the Wikipedia page on ANSI escapes for the full collection of sequences, including the colors. But for one simple example (Printing in red) in Java (as you tagged this as Java) do:

difference between System.out.println() and System.err.println()

牧云@^-^@ 提交于 2019-12-02 14:37:22
What is the difference between System.out.println() and System.err.println() in Java? Carlos G. In Java System.out.println() will print to the standard out of the system you are using. On the other hand, System.err.println() will print to the standard error. If you are using a simple Java console application, both outputs will be the same (the command line or console) but you can reconfigure the streams so that for example, System.out still prints to the console but System.err writes to a file. Also, IDEs like Eclipse show System.err in red text and System.out in black text by default. System

Error in System.out.println

旧城冷巷雨未停 提交于 2019-12-02 07:19:12
Is there any error in the following code? It shows cant find symbol, symbol: class out location: class System. In the log, it show a lot of errors, including java.lang.ClassFormatError: Method "" in class Area has illegal signature "(Ljava/lang/Object;)Ljava/lang/System$out$println;" import java.util.*; class Area { double pi=3.14; Scanner sc=new Scanner(System.in); System.out.println("Enter the value of r"); int r=sc.nextInt(); System.out.println("enter the value h"); int h=sc.nextInt(); void areaOfCircle() { double area1=pi*r*r; System.out.println("area of circle="+area1); } void

Cygwin encoding difficulties

瘦欲@ 提交于 2019-12-02 02:02:01
Not sure whether this is a programming problem. I began to suspect so... but then I ran the Java program (executable jar) in question in a Windows console instead of a Cygwin one... and it ran fine: output accents fine, accented input accepted fine. So what follows applies only to the Cygwin console. I'm processing some French text. When accented characters are printed ( System.out ) a sort of "hashed box" is printed instead. I saw another question here about this but there was no solution or proper explanation given. And when I enter accented characters these are read in incorrectly (Java