how to use if then in java code example

Example 1: else statement java

int x = 3;

if (x == 3) {
  // block of code to be executed if the condition is true
} else {
  // block of code to be executed if the condition is false
}

Example 2: else if java

else if statement is used to specify new condition if first condition is false.
Syntax:

if(condition1)
{
   // execute if condition1 is true
}
else if (condition2)
{
   // execute if condition2 is true
}
else if (condition3)
{
   // execute if condition3 is true
}
else
{
   // execute if conditions 1, 2 and 3 becomes false
}