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so what the result of c = c + a * b;

--- Update ---

what the result of c = c + a * b;

ok but how i do it a*b is 2 and then how do i do c=c&6

public class NewClass4 {
public static void main(String[] args) {
int a = 1;
int b = 2;
int c = 3;
a += 5;
b *= 4;
c += a * b;
c %= 6;
System.out.println("a = " + a);