Java Else Keyword

Java Else Keyword


Else Keyword In Java
  • Use if to specify a block of code to be executed, if a specified condition is true
  • Use else to specify a block of code to be executed if the same condition is false.
Note - 
1. Else is an optional part
2. Condition is mandatory with if
3. We can not specify any condition with else.
 
If else has total 5 different variations which we will see as follows -
  1.  Only if
  2. If ___  else
  3. else__if  ladder
  4. Multiple if
  5. Nested if.
All of the above-mentioned conditional constructs can use an else statement as an optional part.
Now we will see some Examples - 
Example - 
int a= 7;
int b = 9;
if (a == b) {
  System.out.println("a is equal to b");
}
else {
System.out.println("a is not equal to b");
}
Output - A sample output would be - 
a is not equal to b
Example - We will modify the previous example a little bit.
int a= 7;
int b = 9;
if (a == b) {
  System.out.println("a is equal to b");
}
 else if(a>b){
  System.out.println("a is greater then b");
         }
else {
  System.out.println("a is smaller then b");
    }
Output - 
Output :
a is smaller then b