There are 4 Operators in Java Programming
- Arithematic operators
- Logical operators
- Assignment operators
- Relational operators
- Incremental, Decremental operators
Arithematic Operators
| + | Addition |
| – | Subtraction |
| * | Multiplication |
| / | Division |
| % | Modulus |
Example 1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | public class Arithematic { public static void main(String[] args) { int x; int y; x =50; y=6; System.out.println(x + y); System.out.println(x - y); System.out.println(x / y); System.out.println(x % y); } } |
Output
56
44
8
2
Example 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | public class Arithematic2 { public static void main(String[] args) { int x; int y; x =20; y = 10; System.out.println("x+y= "+ (x+y)); System.out.println("x-y= "+ (x-y)); System.out.println("x*y= "+ (x*y)); System.out.println("x/y= "+ (x/y)); System.out.println("x%y= "+ (x%y)); } |
Output
x+y= 30
x-y= 10
x*y= 200
x/y= 2
x%y= 0
Example 3
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | public class Arithematic3 { public static void main(String[] args) { int x=20; int y=10; int z=30; System.out.println(x+y); System.out.println(x+y+z); System.out.println(x+z); System.out.println(z-x); System.out.println(x*z); System.out.println(z/x); } } |
Output
30
60
50
10
600
1
Logical Operators
| && | And Operator |
| || | or Operator |
| ! | Not opertor |
Example 1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | public class Logical { public static void main(String[] args) { int x=20; int y=10; System.out.println(x>2&&y>2); System.out.println(x>2&&y>30); System.out.println(x>15&&y>10); System.out.println(x>2&&y>2); System.out.println(x>2&&y>30); System.out.println(x>2||y>2); System.out.println(x>2||y>30); System.out.println(x>15||y>10); System.out.println(!(y>x)); } } |
Output
true
false
false
true
false
true
true
true
true
Example 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | public class Logical2 { public static void main(String[] args) { int x=100; int y=50; System.out.println(x>2&&y>2); System.out.println(x>2&&y>30); System.out.println(x>15&&y>10); System.out.println(x>2||y>2); System.out.println(x>2||y>2); System.out.println(x>2||y>30); System.out.println(x>15||y>10); System.out.println(!(y>x)); System.out.println(!(x>y)); } } |
Output
true
true
true
true
true
true
true
true
false
Assignment Operators
| = | Assignment |
| += | Assignment after addition |
| -= | Assignment after substraction |
| *= | Assignment after multiplication |
| /= | Assignment after division |
| %= | Assignment after mod |
Increment,Decrement Operators
| ++ | Increment Operator |
| — | Decrement Operator |
Increment Operator
Example 1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | public class Increment { public static void main(String[] args) { int x=5; int y=10; System.out.println("x= " +x); System.out.println("y= " +y); ++x; ++y; System.out.println("x= " +x); System.out.println("y= " +y); } } |
Output
x= 5
y= 10
x= 6
y= 11
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | public class Increment1 { public static void main(String[] args) { int x=5; int y=10; System.out.println("x= " +x + " y= " + y); ++x; System.out.println("x= " +x + " y= " + y); ++y; ++y; System.out.println("x= " +x + " y= " + y); ++x; ++x; ++x; ++y; System.out.println("x= " +x + " y= " + y); } } |
Output
x= 5 y= 10
x= 6 y= 10
x= 6 y= 12
x= 9 y= 13
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | public class Increment2 { public static void main(String[] args) { int Age=25; ++Age; ++Age; ++Age; ++Age; System.out.println("Age=" +Age); ++Age; ++Age; ++Age; System.out.println("Age=" +Age); } } |
Output
Age=29
Age=32
Decrement Operator
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | public class Decrement{ public static void main(String[] args) { int x = 10; int z = 20; System.out.println("x= " + x + " z= " +z); --x; --z; System.out.println("x= " + x + " z= " +z); } } |
x= 10 z= 20
x= 9 z= 19
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | public class Decrement2{ public static void main(String[] args) { int x = 10; int z = 20; System.out.println("x= " + x + " z= " +z); --x; System.out.println("x= " + x + " z= " +z); --x; --x; System.out.println("x= " + x + " z= " +z); --x; --x; --x; --z; System.out.println("x= " + x + " z= " +z); } |
Output
x= 10 z= 20
x= 9 z= 20
x= 7 z= 20
x= 4 z= 19
Relational Operators
| != | not equlal to |
| — | is equal to |
| > | greater than |
| < | less than |
| >= | greater than or equal to |
| <= | less than or equal to |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | public class Relational{ public static void main(String[] args) { int x = 10; int z = 20; System.out.println(x==z); System.out.println(x!=z); System.out.println(x>z); System.out.println(x<z); System.out.println(x>=z); System.out.println(x<=z); } } |
false
true
false
true
false
true
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | public class Relational1{ public static void main(String[] args) { int x = 10; int y = 20; int z = ++x; int d = y++; System.out.println("x= "+x); System.out.println("y= "+y); System.out.println("z= "+z); System.out.println("d= "+d); } } |
Output
x= 11
y= 21
z= 11
d= 20
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | public class Relational2{ public static void main(String[] args) { int x = 10; int y = 10; int z = ++x; int d = y++; System.out.println("x= "+x); System.out.println("y= "+y); System.out.println("z= "+z); System.out.println("d= "+d); x++; ++y; System.out.println("x+y+z+d=" + (x+y+z+d)); ++z; ++d; System.out.println("x+y+z+d=" + (x+y+z+d)); } } |
Output
x= 11
y= 11
z= 11
d= 10
x+y+z+d=45
x+y+z+d=47
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | public class Relational3{ public static void main(String[] args) { int x = 10; int y = 10; int z = ++x; int d = y++; System.out.println(++y+"," +z+", "+d); System.out.println(y++ +","+ ++x+", "+ y*d); System.out.println(x+y+z+d); } } |
Output
12,11, 10
12,12, 130
46
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | public class Relational4{ public static void main(String[] args) { int x = 10; int y = 10; int z = 20; int d = 30; int e = 40; System.out.println(x==20||y>20); System.out.println(x>5&&e>50); System.out.println(x==10&&e==30); System.out.println(d<30||z>20); System.out.println(e>10&&d==30&&x<5); System.out.println(!(x==10||e==30)); System.out.println(!(z<5||y>0&&e<50)); System.out.println(x==10&&e==30); System.out.println(!(x==10||e==30)); System.out.println(z<5||y>0&&e<50); System.out.println(!(x<y)); System.out.println(!(x<y&&e==40)); System.out.println(!(e>10&&d==30&&x<5)); System.out.println(!(x==20||y>20)); System.out.println(!(x==5&&e>50)); System.out.println(!(d==30)&&(y>1)); System.out.println((d==30)&&!(y>1)); } } |
Output
false
false
false
false
false
false
false
false
false
true
true
true
true
true
true
false
false
Operator Precedence
1 2 3 4 5 6 7 8 9 10 11 | public class Opertors { public static void main(String[] args) { int x =10; if(x>2) System.out.println("x>2"); } } |
x>2
1 2 3 4 5 6 7 8 9 10 11 12 | public class Opertors1 { public static void main(String[] args) { int x =100; if(x>250) System.out.println("x>250"); else System.out.println("x>250"); } } |
Output
x>250
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | public class Opertors2 { public static void main(String[] args) { int marks = 70; char x; if(marks<40) x='F'; else if(marks<50) { x ='C'; } else if(marks<75) x='B'; else x ='A'; System.out.println("Your Grade is " +x); } } |
Output
Your Grade is B
