演算 解答例

int A = 5;
int B = 2;
System.out.print(A * B);

int A = 4;
System.out.println(++A);

String A = "数字=";
int B = 40;
System.out.print(A+B);

char A = 'A';
System.out.println((char) (A + 2));

int a = 5;
int b = 3;
int sum = a + b;
System.out.println(sum); // 8

int a = 5;
int b = 3;
int difference = a - b;
System.out.println(difference); // 2

int a = 10;
int b = 3;
int quotient = a / b;
System.out.println(quotient); // 3

int a = 10;
int b = 3;
int remainder = a % b;
System.out.println(remainder); // 1

int a = 5;
int negated = -a;
System.out.println(negated); // -5

double a = 2.5;
double b = 1.3;
double sum = a + b;
System.out.println(sum); // 3.8

double a = 2.5;
double b = 1.3;
double product = a * b;
System.out.println(product); // 3.25