how while loop works in java code example

Example 1: while loop java

//runs as long as the condition is true
while(condition){
//do what you want in here
doStuff()
}

Example 2: while loop in java

A while loop iterates a block of statements until condition is true. In a 
while loop condition is executed first.
Syntax:

while(condition)
{
   // code goes here
}