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Comparable and Comparator in Java Example

Comparable and Comparator in Java are very useful for sorting the collection of objects. Java provides some inbuilt methods to sort primitive types array or Wrapper classes array or list. Here we will first learn….

How to Convert String to Array in Java

Sometimes we have to split String to array based on delimiters or some regular expression. For example, reading a CSV file line and parsing them to get all the data to a String array. In….

Java String Array to String

Today we will look into how to convert Java String array to String. Sometimes we have to convert String array to String for specific requirements. For example; we want to log the array contents or….

String to byte array, byte array to String in Java

Today we will learn how to convert String to byte array in java. We will also learn how to convert byte array to String in Java. String to byte array We can use String class….

String to char array, char array to String in Java

Today we will learn how to convert String to a char array and then char array to String in Java. String to char array Java String is a stream of characters. String class provides a….

Java Array add elements

How to add elements to an array in java? We know that java array size is fixed, so we can’t add elements to an Array. We have to provide size of the array when we….

Java ArrayList to Array

Sometimes we have to convert ArrayList to Array in java program. Today we will look into different java ArrayList to Array conversion options. Java ArrayList to Array ArrayList in Java is backed by Array. So….

Java Array to List (ArrayList) Conversion

Sometimes we need to convert Array to List in java, here we will learn two different ways to achieve this. Since List is an interface and ArrayList is the most popular implementation, it’s the same….

Java Copy Array – Array Copy in Java

Today we will look into different ways for java array copy. Java provides inbuilt methods to copy the array. Whether you want a full copy or partial copy of the array, you can do it….

How to initialize an Array in Java

Today we will learn how to initialize an array in java. An array in java is a container that can hold a fixed number of values of the same type. The values can be of….

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