//: MathOps.java
// Demonstrates the mathematical operators
import java.util.*;
public class MathOps {
// Create a shorthand to save typing:
static void prt(String s) {
System.out.println(s);
}
// shorthand to print a string and an int:
static void pInt(String s, int i) {
prt(s + " = " + i);
}
// shorthand to print a string and a float:
static void pFlt(String s, float f) {
prt(s + " = " + f);
}
public static void main(String[] args) {
// Create a random number generator,

// seeds with current time by default:
Random rand = new Random();
int i, j, k;
// '%' limits maximum value to 99:
j = rand.nextInt() % 100;
k = rand.nextInt() % 100;
pInt("j",j); pInt("k",k);
i = j + k; pInt("j + k", i);
i = j - k; pInt("j - k", i);
i = k / j; pInt("k / j", i);
i = k * j; pInt("k * j", i);
i = k % j; pInt("k % j", i);
j %= k; pInt("j %= k", j);
// Floating-point number tests:
float u,v,w; // applies to doubles, too
v = rand.nextFloat();
w = rand.nextFloat();
pFlt("v", v); pFlt("w", w);
u = v + w; pFlt("v + w", u);
u = v - w; pFlt("v - w", u);
u = v * w; pFlt("v * w", u);
u = v / w; pFlt("v / w", u);
// the following also works for
// char, byte, short, int, long,
// and double:
u += v; pFlt("u += v", u);
u -= v; pFlt("u -= v", u);
u *= v; pFlt("u *= v", u);
u /= v; pFlt("u /= v", u);
}
} ///:~