Remember: The basic output statement in Java is
System.out.println ( );

System.out.println(" text " ); will print what is between the double quotes “ “ and move the printing cursor to the next line.

System.out.print ( “ text ”); will print what is between the double quotes and leave the printing cursor on the same line.

When dealing with variables:
System.out.println( “ The total pay is “ + totalPay);
what is surrounded by " " is referred to as a "literal print" and gets printed exactly. The "+" sign is the concatenator operator and concatenates the string with the value that is stored in the variable totalPay. totalPay is declared as a double, but is automatically converted to a String for the purpose of printing out.

double totalPay = 1006.5;
System.out.println("The total pay is " + totalPay);

On the screen:
The total pay is 1006.5

You can print an arithmetic expression within a System.out.print statement. Use parentheses around the arithmetic expression to avoid unexpected problems.
System.out.println("Adding ten to the total: " + (totalPay + 10));

System.out.println("answer " + 3 + 4); // becomes answer 34
System.out.println("answer " + (3 + 4)); // becomes answer 7