Nested while loop in Java language

Nested whileloop in Java language

In this tutorial, we will discuss the Nested while loop in java language.

Nested whileloop

When a whileloop exists inside the body of another whileloop, it is known as nested whileloop in Java.

Flow diagram

Syntex

while(expression)
   {
    statements;

      while(expression)
         {
             statements;
         }
   }

Here we can see, a whileloop is inside the body another whileloop.


Example in nested while loop

Program 1

The program displays square star pattern using nested whileloop

When you execute above code , it produces the folloing result

**********
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**********
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**********
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program 2

The program displays Floyd’s triangle star pattern using nested whileloop.

When you execute above code , it produces the folloing result

Program 3

The program displays multiplication table using nested while loop.

class nestedwhileloop
{
public static void main (String args[])
{
int i=1, j=1;
System.out.println(“Tables”);
while(i<=2)
{
while(j<=12)
{
System.out.println(i+”*”+j+”=”+(i*j));
j++;
}
i++;
System.out.println(“”);
j=1;

}
}

}

When you execute above code , it produces the folloing result.

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