Java Strings

toCharArray() converts a string to a new character array. In this post, we will learn in detail about the toCharArray() method of the String class with some what-if scenarios. Method declaration – public char[] toCharArray() What does it do? It will convert a string into a new character array with the same length as the […]

The equalsIgnoreCase() method of the String class compares two strings based on their contents irrespective of the case ( lowercase or uppercase ). Method declaration – public boolean equalsIgnoreCase(String anotherString). What does it do? – It will accept a string as a function argument which will be compared with the string calling the function. What

The endsWith() method tells us whether a string ends with a specified string or not. This post will discuss the endsWith() method of the String class in detail. Method declaration –public boolean endsWith(String suffix). What does it do? It tells us whether the string ends with the specified string ( the string passed as the

This post will discuss the startsWith() method of the String class in detail. startsWith() helps us determine whether the string starts with the specified string. We have also kept some fun what-if scenarios at the end of the post. In Java, we have two overloaded startsWith() methods – public boolean startsWith(String prefix) public boolean startsWith(String

The Java String substring() method returns a part of the String and there are two overloaded substring() methods in Java. public String substring(int beginIndex) public String substring(int beginIndex, int endIndex) Let’s look at both of the methods one by one public String substring(int beginIndex) What does it do? It takes an index into the argument

strip() method was introduced in Java 11, and it helps remove the leading and trailing whitespaces from the string. In this post, we will discuss the strip() method in detail and see how it is different from the trim() method. Method declaration – public String strip() What does it do? – It will remove all

Method declaration – public String trim() What does it do? trim() method will remove all leading and trailing spaces from the string, where space is defined as any character whose codepoint is less than or equal to ‘U+0020’ ( the space character). What does it return? If returns a string with all of its leading

indexOf() method is a way of finding the index of the first occurrence of a character or a string. In this post, we will discuss the indexOf() method of the String class in detail. indexOf() method has below overloaded methods – public int indexOf(int ch) public int indexOf(int ch, int fromIndex) public int indexOf(String str)

isEmpty() method of the String class will tell you whether the String is empty or not. In this post, we will be learning about the isEmpty() method in detail. Method declaration – public boolean isEmpty(). What does it do? – It will tell whether the string is empty or not by checking the length of

length() method tells us about the size of the string. In this post, we will discuss the length() method of the String class in detail. Method declaration – public int length(). What does it do and return? It helps in returning the size of the string. The length equals the number of Unicode code units