Java Strings Tutorials
by All Java String Examples Tutorial
Tag: java string
Java StringTokenizer examples
In Java, we use StringTokenizer to split a string into multiple tokens. The StringTokenizer is a legacy class, try the split method of String.
How to convert String to InputStream in Java
In Java, we can use ByteArrayInputStream to convert a String to an InputStream. We will examine how to use ByteArrayInputStream to convert a String to an InputStream and saves it into a file.
How to convert InputStream to String in Java
This article shows a few ways to convert an java.io.InputStream to a String. We will examine a few ways: using ByteArrayOutputStream, using InputStream#readAllBytes (Java 9), using InputStreamReader + StringBuilder, InputStreamReader + BufferedReader, using Java 8 BufferedReader#lines, using Apache Commons IO.
How to convert String to int in Java
In Java, we can use Integer.parseInt(String) to convert a String to an int; For unparsable String, it throws NumberFormatException. We will examine deeply on how to convert String to primitive type int and how to handle NumberFormatException.
How to convert String to Integer in Java
In Java, we can use Integer.valueOf(String) to convert a String to an Integer object; For unparsable String, it throws NumberFormatException. We will examine deeply on how to convert a String to an object Integer and how to handle NumberFormatException.
Java – How to check if a String is numeric
Few Java examples to show you how to check if a String is numeric. We have several ways to check numeric string: using Character.isDigit(), using NumberUtils.isDigits() from Apache Commons Lang
How to split a string in Java
In Java, we can use String#split() to split a string. We will examine deeply many ways or options to split a string.
How to compare strings in Java
In Java, we use equals() to compare string value. In this article, we will show you a few ways to compare strings in Java: using equals(), using equalsIgnoreCase(), using contentEquals(), using compareTo(), using Objects.equals() and String interning.
Java String compareTo() examples
The Java String compareTo() method compares two strings lexicographically (alphabetical order). It returns a positive number, negative number, or zero. if s1 < s2, it …