There are two ways to check if two Strings are equal. You can use the==operator or theequals()method. When you use the==operator, it checks for the value ofStringas well as the object reference. Often in Java programming you want to check only for the equality of theStringvalue. In ...
In Java, Strings are immutable. An obvious question that is quite prevalent in interviews is “Why Strings are designed as immutable in Java?” James Gosling, the creator of Java,was once asked in an interviewwhen should one use immutables, to which he answers: I would use an immutable wh...
Since String is immutable, the change in values of the String references in the method will be gone as soon as the method ends. Also we can’t return multiple objects from a method in java. So we will have to create a Container to hold the input strings and then perform the above log...
As I said, there could be many possible answers to this question, and the only designer of String class can answer it with confidence. I was expecting some clue in Joshua Bloch'sEffective Javabook, but he also didn't mention it. I think following two reasons make a lot of sense on wh...
Literals in Java programming: string, boolean, integer, floating point, and character literals. Java literals are fixed values used in a program. This tutorial covers Java literals in detail.
At the beginning of this section we have stated that the Java language lacks fastStringsearching algorithms. But how slow is the standard Java naive implementation compared to our algorithm suite? To answer the aforementioned question we have implemented two methods so as to retrieve all index valu...
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In this article, we’re going to see how we can check whether a givenStringis a palindrome using Java. A palindrome is a word, phrase, number, or other sequences of characters which reads the same backward as forward, such as “madam” or “racecar”. ...
java j2ee job interview questions with answers | Learn the core concepts and the key areas Tony Morris Ranch Hand Posts: 1608 posted 18 years ago is there any case why i want to use the first notation? Only in obscure cases such as: - asking a question on a Java forum - demonstrati...
Here, we are going to learn the solution to find number of times a string occurs as a subsequence – which is a popular interview question based on dynamic programming.