Print in new line, java

问题:

I have following code :

    System.out.println(" | 1  2  3  4  5  6  7  8  9");
    System.out.println("----------------------------");
    System.out.println("");

I use println to create a new line. Is it possible to do the same using \n or \r? I tried to add \n to the second println statment and continue printing with the print method but \n does not create a new line.

any ideas?

回答1:

    String newLine = System.getProperty("line.separator");//This will retrieve line separator dependent on OS.

    System.out.println("line 1" + newLine + "line2");

回答2:

System.out.println("hello"+"\n"+"world");

回答3:

It does create a new line. Try:

System.out.println("---\n###");

回答4:

Your best shot would be with

String.format("%n")

or

System.out.printf("%n");

It is supposed to print a newline character, depending on the current platform, so it's perfect for the console.

If you are printing to a file, then it depends.

回答5:

You might try adding \r\n instead of just \n. Depending on your operating system and how you are viewing the output, it might matter.

回答6:

You should use the built in line separator. The advantage is that you don't have to concern what system you code is running on, it will just work.

Since Java 1.7

System.lineSeparator()

Pre Java 1.7

System.getProperty("line.separator")

回答7:

\n creates a new line in Java. Don't use spaces before or after \n.

Example: printing It creates\na new line outputs

It creates
a new line.

回答8:

Since you are on Windows, instead of \n use \r\n (carriage return + line feed).

回答9:

System.out.print(values[i] + " ");
//in one number be printed

回答10:

"\n" this is the simple method to separate the continuous String

回答11:

//Case1:
System.out.println(" 1  2  3  4  5  6  7  8  9" + "\n" + "----------------------------");

//Case2:
System.out.printf(" 1  2  3  4  5  6  7  8  9" + "\n" + "----------------------------");

//Case3:
System.out.print(" 1  2  3  4  5  6  7  8  9" + "\n" + "----------------------------");