The basic operators in calculations are +, -, *, and /. They have the usual meanings: add, subtract, multiply, and divide, respectively.
Using parentheses in arithmetic calculations to change the sequence of operations.
public class MainClass{
public static void main(String[] argv){
int a = (20 - 3) * (3 - 9) / 3;
int b = 20 - 3 * 3 - 9 / 3;
System.out.println(a);
System.out.println(b);
}
}
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