Printing & Formatted Output

System.out.println prints and moves to a new line; System.out.print prints without one. You can print values of any type, and join text with values using the + operator:

String name = "Ada";
int age = 36;
System.out.println("Name: " + name);
System.out.println("Age next year: " + (age + 1));
System.out.print("no newline here");
System.out.println(" ...this continues the same line");

Output:

Name: Ada
Age next year: 37
no newline here ...this continues the same line

Two details worth noticing:

• "Age next year: " + (age + 1) — the parentheses matter. Without them, + is read left-to-right and 1 would be glued onto the text as the character 1 (...: 361).
• Java has a modern formatting option, String.formatted(...) (Java 15+), and the older System.out.printf:

System.out.printf("Total: $%.2f%n", 19.991);   // Total: $19.99
System.out.println("Hi %s, you are %d".formatted("Ada", 36));

%.2f means "a decimal number with 2 places", %s a string, %d a whole number, %n a newline. Format strings are the tool of choice when output needs to line up in columns.

For a multi-line piece of text, a text block (Java 15+) keeps the shape of the text in your source:

String menu = """
    1) Coffee
    2) Tea
    3) Exit
    """;
System.out.println(menu);

Next: a tour of Java's data types.