Mathematical Expressions in Java

We can perform multiple calculations using operators in the same line of code:

System.out.println(3 - 4 + 6); // Prints 5
System.out.println(5 + 2 - 3); // Prints 4
System.out.println(2 * 5 + 1); // Prints 11
System.out.println(4 / 2 * 5); // Prints 10

We can also use variables:

int num1 = 5;
int num2 = -1;

System.out.println(2 * num1 * num2); // Prints -10
System.out.println(num1 + num2 - 3); // Prints 1
System.out.println(20 / num1 + num2); // Prints 3
System.out.println(num1 / 5 * num2); // Prints -1