Often, when programming it is useful to manipulate Strings in a way that you need to put a new line in an already existing string or a in a string that you are building. To do this you just need to know that Java makes everything very easy for you and the only thing needed is the concept of line separator and how to get it in Java. In this page you will learn how to insert a new line in a string in Java in just a few lines of code.

Suppose you are reading the data from an xml file containing generalities about persons and you want to print the name, surname and birth date on separate lines. Then to do this, you just need to write the following lines:

String endofline = System.getProperty("line.separator");
myString = "Name: " + childElement.getAttributeValue("Name") + endofline
+ "Surname: " + childElement.getAttributeValue("Surname") + endofline
+ "Birth: " + childElement.getAttributeValue("Birth") + endofline;

As we can see, the first operation is to get the line separator in a String called endofline and then append this to the various points where we want to insert it.

Suppose your string is called myString and you need to insert a new line at the end of each record ending with "),". To do this you just need the following in Java.

String endofline = System.getProperty("line.separator");

myString = myString.replace("),",")," + endofline)

To print the string in the console just type:

System.out.println(myString);

and you will see that every record ending with ")," is replaced with ")," and a new line.