// An integer can be entered in several ways:
int i = 123;
System.out.println("i = " + i);
i = 00123;
System.out.println("i = " + i);
i = 0x123;
System.out.println("i = " + i);
// A double can also be entered in several ways:
float f = 123f;
System.out.println("f = " + f);
f = 123.0f;
System.out.println("f = " + f);
f = (float)1.23e2; // 1.23 x (10 ^ 2)
System.out.println("f = " + f);
