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内容。
//: AllOps。java
// Tests all the operators on all the
// primitive data types to show which
// ones are accepted by the Java piler。
class AllOps {
// To accept the results of a boolean test:
void f(boolean b) {}
void boolTest(boolean x; boolean y) {
// Arithmetic operators:
//! x = x * y;
//! x = x / y;
//! x = x % y;
//! x = x + y;
//! x = x y;
//! x++;
//! x……;
//! x = +y;
//! x = …y;
// Relational and logical:
//! f(x 》 y);
//! f(x 》= y);
//! f(x 《 y);
//! f(x 1;
//! x = x 》》》 1;
// pound assignment:
//! x += y;
//! x …= y;
//! x *= y;
//! x /= y;
//! x %= y;
//! x = 1;
//! x 》》》= 1;
x &= y;
x ^= y;
x |= y;
// Casting:
//! char c = (char)x;
//! byte B = (byte)x;
//! short s = (short)x;
//! int i = (int)x;
//! long l = (long)x;
//! float f = (float)x;
//! double d = (double)x;
}
void charTest(char x; char y) {
// Arithmetic operators:
x = (char)(x * y);
x = (char)(x / y);
x = (char)(x % y);
x = (char)(x + y);
x = (char)(x y);
x++;
x……;
x = (char)+y;
x = (char)…y;
// Relational and logical:
f(x 》 y);
f(x 》= y);
f(x 《 y);
f(x 1);
x = (char)(x 》》》 1);
// pound assignment:
x += y;
x …= y;
x *= y;
x /= y;
x %= y;
x = 1;
x 》》》= 1;
x &= y;
x ^= y;
x |= y;
// Casting:
//! boolean b = (boolean)x;
byte B = (byte)x;
short s = (short)x;
int i = (int)x;
long l = (long)x;
float f = (float)x;
double d = (double)x;
}
void byteTest(byte x; byte y) {
// Arithmetic operators:
x = (byte)(x* y);
x = (byte)(x / y);
x = (byte)(x % y);
x = (byte)(x + y);
x = (byte)(x y);
x++;
x……;
x = (byte)+ y;
x = (byte)y;
// Relational and logical:
f(x 》 y);
f(x 》= y);
f(x 《 y);
f(x 1);
x = (byte)(x 》》》 1);
// pound assignment:
x += y;
x …= y;
x *= y;
x /= y;
x %= y;
x = 1;
x 》》》= 1;
x &= y;
x ^= y;
x |= y;
// Casting:
//! boolean b = (boolean)x;
char c = (char)x;
short s = (short)x;
int i = (int)x;
long l = (long)x;
float f = (float)x;
double d = (double)x;
}
void shortTest(short x; short y) {
// Arithmetic operators:
x = (short)(x * y);
x = (short)(x / y);
x = (short)(x % y);
x = (short)(x + y);
x = (short)(x y);
x++;
x……;
x = (short)+y;
x = (short)…y;
// Relational and logical:
f(x 》 y);
f(x 》= y);
f(x 《 y);
f(x 1);
x = (short)(x 》》》 1);
// pound assignment:
x += y;
x …= y;
x *= y;
x /= y;
x %= y;
x = 1;
x 》》》= 1;
x &= y;
x ^= y;
x |= y;
// Casting:
//! boolean b = (boolean)x;
char c = (char)x;
byte B = (byte)x;
int i = (int)x;
long l = (long)x;
float f = (float)x;
double d = (double)x;
}
void intTest(int x; int y) {
// Arithmetic operators:
x = x * y;
x = x / y;
x = x % y;
x = x + y;
x = x y;
x++;
x……;
x = +y;
x = …y;
// Relational and logical:
f(x 》 y);
f(x 》= y);
f(x 《 y);
f(x 1;
x = x 》》》 1;
// pound assignment:
x += y;
x …= y;
x *= y;
x /= y;
x %= y;
x = 1;
x 》》》= 1;
x &= y;
x ^= y;
x |= y;
// Casting:
//! boolean b = (boolean)x;
char c = (char)x;
byte B = (byte)x;
short s = (short)x;
long l = (long)x;
float f = (float)x;
double d = (double)x;
}
void longTest(long x; long y) {
// Arithmetic operators:
x = x * y;
x = x / y;
x = x % y;
x = x + y;
x = x y;
x++;
x……;
x = +y;
x = …y;
// Relational and logical:
f(x 》 y);
f(x 》= y);
f(x 《 y);
f(x 1;
x = x 》》》 1;
// pound assignment:
x += y;
x …= y;
x *= y;
x /= y;
x %= y;
x = 1;
x 》》》= 1;
x &= y;
x ^= y;
x |= y;
// Casting:
//! boolean b = (boolean)x;
char c = (char)x;
byte B = (byte)x;
short s = (short)x;
int i = (int)x;
float f = (float)x;
double d = (double)x;
}
void floatTest(float x; float y) {
// Arithmetic operators:
x = x * y;
x = x / y;
x