Java Tutorial

Java String lastIndexOf Well, in some of the above methods, we tried finding the first occurrence index of some string, or some character. If you are wondering that hey… what if we want to get the last occurrence of some string or some character? How can we do that? Well, for this also, we have […]

Java String indexOf Well, with this method, we are getting the first occurrence (index) of the string that we are providing as an argument. This is like saying – hey… take this string, and tell me where this string has first occurred in the specified string. Just give me the index of the first occurrence

Java string isEmpty Well, read the method. It says is empty. It is asking that – hey, is the given string empty? But first, let’s understand what we mean by an empty string. Well, this is simple. An empty string means an empty string, which means the string which is empty! Or we can say

Java String Endswith Method Well, the name of this method says it all. We are checking whether the given string ends with some specified string. This is like we are saying – hey… take the string, and tell me whether that string ends with the given string? We get the answer as yes or no

Java String EqualsIgnoreCase Method Well, in the previously discussed method, we had experienced that even if the content is the same, but the case(upper and lower) is not, the output was coming to be false. In such a condition, if we want to ignore the case, we just have to use the method called as

Java String Equals With this method, we check the equals of the strings based on their contents. In other words, we are checking whether or not the two strings have the same content. So, let’s now do a program to understand this method. Here, we are going to create two objects, one with the help

Java String Concat Method With this method, we can concatenate one string at the end of another string. This is like saying – hey… take this string, and glue it at the end of the given string. We can also perform concatenation of the strings using the + operator with the strings. So, let’s try

Java String CharAt(int index) Method Well, the method name says ”char at”, so as the name says, this method is going to get us the character at the given index. We had some discussions earlier related to the indexing concept. We had discussed that the index of the strings starts from zero. For a string

Java String toUpperCase() Method We have mentioned above, and also the name of the method says it all. With this method, we are creating an uppercase version of the string literal. Let’s have a simple program to understand the output of the method → public class StringMethods {public static void main(String[] args) {String exampleString =

Java String to lowercase() Method As mentioned above, and as the name suggests, this method is going to get us the lowercase version of the string. Always remember that the strings are immutable. We have seen a program above for this method, but still, for getting a clearer picture, let’s again do it. public class