• 15 September

    Check for balanced parentheses in an expression in java

    If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see how to check for balanced parentheses in an expression. Lets say, you have expression as a*(b+c)-(d*e) If you notice, above expression have balanced parentheses. Lets take another expression as (a*(b-c)*(d+e) If you observe, […]

  • 23 September

    Sort a Stack using another stack

    If you want to practice data structure and algorithm programs, you can go through 100+ java coding interview questions. In this post,  we will see how to sort a stack using another stack. Problem Given a Stack,  you need to sort it with the help of temporary stack. Solution : Let’s say,  you have two stacks, […]

  • 10 September

    Implement Stack using two Queues in java

    If you want to practice data structure and algorithm programs, you can go through 100+ java coding interview questions. In this program, we will see how to implement stack using Linked List in java. Stack is abstract data type which demonstrates Last in first out (LIFO) behavior. We will implement same behavior using two queue. There […]

  • 10 September

    Implement stack using Linked List in java

    If you want to practice data structure and algorithm programs, you can go through 100+ java coding interview questions. In this program, we will see how to implement stack using Linked List in java. The Stack is an abstract data type that demonstrates Last in first out (LIFO) behavior. We will implement the same behavior using […]

  • 16 September

    Stack implementation in java

    If you want to practice data structure and algorithm programs, you can go through 100+ java coding interview questions. In this post, we will see how to implement Stack using Array in java. Introduction Stack is abstract data type which demonstrates Last in first out (LIFO) behavior. We will implement same behavior using Array. Although java […]