Java · Chapter 5 of 42
Java Output
System.out.println() and System.out.print() are used to print output to the console. println adds a new line after the text, while print does not.
You can concatenate strings and values using the + operator, or use String.format() / printf for more control over formatting.
Syntax
System.out.println(value);
System.out.printf("format", values);println vs print
println() moves to a new line after printing; print() keeps the cursor on the same line, useful for building output piece by piece.
Formatted output
System.out.printf() works like C's printf, using format specifiers like %d, %s, and %.2f for controlled formatting.
Example 1 (java)
public class Main {
public static void main(String[] args) {
System.out.println("Hello");
System.out.print("No newline ");
System.out.printf("Pi is %.2f%n", 3.14159);
}
}Output
Hello
No newline Pi is 3.14println adds a newline, print does not, and printf formats the float to 2 decimal places.
Key points
- println() adds a newline after printing.
- print() does not add a newline.
- printf() supports format specifiers like %d and %.2f.
- The + operator concatenates strings with values.
💡 Note: Use %n instead of \n in printf for a platform-independent newline.