Equality and Relational Operators
1. Equal to ( == )
2. Not equal to ( != )
3. Greater than ( > )
4. Greater than or equal to ( >= )
5. Less than ( < )
6. Less than or equal ( <= )
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int x = 100;
int y = 200;
boolean z = ( x == y );
System.out.println("x == y: " + z);
================================
Result:
x == y: false
Conditional operators
- comparing two or more conditions.
1. AND ( && )
- becomes true when all conditions were true.
2. OR ( || )
- becomes true when one or more conditions is/ are true.
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int x = 100;
int y = 200;
int z = 300;
boolean b = ( x < y ) && ( y < z );
System.out.println(b);
==============================
Result:
True
First condition was true.
Second condition was true.
All conditions were true. So, in AND, if all conditions were true, then the result is true.
Ternary Operator
- this function like an if else statement.
- ( condition ) ? values1 : value2;
- so it is read like this. If condition is true, give the value1 else give the value2.
================================
int x = 100;
int y = 200;
int z = ( x > y ) ? x : y;
System.out.println(z);
=================================
200
The result is 200 since x is not Greater than y.
instanceof
- this compares if an object is an instance of the class, subclass or an interface.
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class SuperClass{}
class Subclass extends SuperClass{
public static void main(String[] args){
SubClass sb = new Subclass();
boolean z= sb instanceof SuperClass;
System.out.println(z);
}
}
==============================
Result:
true
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Java Programming
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