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# Program that demonstrate the basic arithmetic operators

Posted By: Volker Fischer     Category: Java     Views: 8410

## Code for Program that demonstrate the basic arithmetic operators in Java

```class BasicMath {
publicstaticvoid main(String args[]) {
// arithmetic using integers
System.out.println("Integer Arithmetic");
int a = 1 + 1;
int b = a * 3;
int c = b / 4;
int d = c - a;
int e = -d;
System.out.println("a = " + a);
System.out.println("b = " + b);
System.out.println("c = " + c);
System.out.println("d = " + d);
System.out.println("e = " + e);

// arithmetic using doubles
System.out.println("\nFloating Point Arithmetic");
double da = 1 + 1;
double db = da * 3;
double dc = db / 4;
double dd = dc - a;
double de = -dd;
System.out.println("da = " + da);
System.out.println("db = " + db);
System.out.println("dc = " + dc);
System.out.println("dd = " + dd);
System.out.println("de = " + de);
}
}

listing 2
// Demonstrate the % operator.class Modulus {
publicstaticvoid main(String args[]) {
int x = 42;
double y = 42.25;

System.out.println("x mod 10 = " + x % 10);
System.out.println("y mod 10 = " + y % 10);
}
}

listing 3
a = a + 4;

listing 4
a += 4;

listing 5
a = a % 2;

listing 6
a %= 2;

listing 7
// Demonstrate several assignment operators.class OpEquals {
publicstaticvoid 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);
System.out.println("b = " + b);
System.out.println("c = " + c);
}
}

listing 8
x = x + 1;

listing 9
x++;

listing 10
x = x - 1;

listing 11
x--;

listing 12
x = 42;
y = ++x;

listing 13
x = x + 1;
y = x;

listing 14
x = 42;
y = x++;

listing 15
y = x;
x = x + 1;

listing 16
// Demonstrate ++ and --.class IncDec {
publicstaticvoid main(String args[]) {
int a = 1;
int b = 2;
int c;
int d;

c = ++b;
d = a++;
c++;
System.out.println("a = " + a);
System.out.println("b = " + b);
System.out.println("c = " + c);
System.out.println("d = " + d);
}
}

listing 17
// Demonstrate the bitwise logical operators.class BitLogic {
publicstaticvoid main(String args[]) {
String binary[] = {
"0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111",
"1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111"
};
int a = 3; // 0 + 2 + 1 or 0011 in binaryint b = 6; // 4 + 2 + 0 or 0110 in binaryint c = a | b;
int d = a & b;
int e = a ^ b;
int f = (~a & b) | (a & ~b);
int g = ~a & 0x0f;

System.out.println("        a = " + binary[a]);
System.out.println("        b = " + binary[b]);
System.out.println("      a|b = " + binary[c]);
System.out.println("      a&b = " + binary[d]);
System.out.println("      a^b = " + binary[e]);
System.out.println("~a&b|a&~b = " + binary[f]);
System.out.println("       ~a = " + binary[g]);
}
}

listing 18
// Left shifting a byte value.class ByteShift {
publicstaticvoid main(String args[]) {
byte a = 64, b;
int i;

i = a << 2;
b = (byte) (a << 2);

System.out.println("Original value of a: " + a);
System.out.println("i and b: " + i + " " + b);
}
}

listing 19
// Left shifting as a quick way to multiply by 2.class MultByTwo {
publicstaticvoid main(String args[]) {
int i;
int num = 0xFFFFFFE;

for(i=0; i<4; i++) {
num = num << 1;
System.out.println(num);
}
}
}

listing 20
int a = 32;
a = a >> 2; // a now contains 8

listing 21
int a = 35;
a = a >> 2; // a still contains 8

listing 22
// Masking sign extension.class HexByte {
staticpublicvoid main(String args[]) {
char hex[] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
};
byte b = (byte) 0xf1;

System.out.println("b = 0x" + hex[(b >> 4) & 0x0f] + hex[b & 0x0f]);
}
}

listing 23
int a = -1;
a = a >>> 24;

listing 24
// Unsigned shifting a byte value.class ByteUShift {
staticpublicvoid main(String args[]) {
char hex[] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
};
byte b = (byte) 0xf1;
byte c = (byte) (b >> 4);
byte d = (byte) (b >>> 4);
byte e = (byte) ((b & 0xff) >> 4);

System.out.println("              b = 0x"
+ hex[(b >> 4) & 0x0f] + hex[b & 0x0f]);
System.out.println("         b >> 4 = 0x"
+ hex[(c >> 4) & 0x0f] + hex[c & 0x0f]);
System.out.println("        b >>> 4 = 0x"
+ hex[(d >> 4) & 0x0f] + hex[d & 0x0f]);
System.out.println("(b & 0xff) >> 4 = 0x"
+ hex[(e >> 4) & 0x0f] + hex[e & 0x0f]);
}
}

listing 25
a = a >> 4;
a >>= 4;

listing 26
a = a | b;
a |= b;

listing 27
class OpBitEquals {
publicstaticvoid main(String args[]) {
int a = 1;
int b = 2;
int c = 3;

a |= 4;
b >>= 1;
c <<= 1;
a ^= c;
System.out.println("a = " + a);
System.out.println("b = " + b);
System.out.println("c = " + c);
}
}

listing 28
int a = 4;
int b = 1;
boolean c = a < b;

listing 29
int done;
// ...if(!done) ... // Valid in C/C++if(num) ...   // but not in Java.

listing 30
if(done == 0)) ... // This is Java-style.if(num != 0) ...

listing 31
// Demonstrate the boolean logical operators.class BoolLogic {
publicstaticvoid main(String args[]) {
boolean a = true;
boolean b = false;
boolean c = a | b;
boolean d = a & b;
boolean e = a ^ b;
boolean f = (!a & b) | (a & !b);
boolean g = !a;

System.out.println("        a = " + a);
System.out.println("        b = " + b);
System.out.println("      a|b = " + c);
System.out.println("      a&b = " + d);
System.out.println("      a^b = " + e);
System.out.println("!a&b|a&!b = " + f);
System.out.println("       !a = " + g);
}
}

listing 32
if (denom != 0 && num / denom > 10)

listing 33
if(c==1 & e++ < 100) d = 100;

listing 34
int x, y, z;

x = y = z = 100; // set x, y, and z to 100

listing 35
ratio = denom == 0 ? 0 : num / denom;

listing 36
// Demonstrate ?. class Ternary {
publicstaticvoid main(String args[]) {
int i, k;

i = 10;
k = i < 0 ? -i : i; // get absolute value of i
System.out.print("Absolute value of ");
System.out.println(i + " is " + k);

i = -10;
k = i < 0 ? -i : i; // get absolute value of i
System.out.print("Absolute value of ");
System.out.println(i + " is " + k);
}
}

listing 37
a >> b + 3

listing 38
a >> (b + 3)

listing 39
(a >> b) + 3

listing 40
a | 4 + c >> b & 7 || b > a % 3
(a | (((4 + c) >> b) & 7)) || (b > (a % 3))

```
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 Volker Fischer author of Program that demonstrate the basic arithmetic operators is from Frankfurt, Germany. View All Articles

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