The Java String concat function is used to concatenate two or more strings together. It takes one or more string arguments and returns a new string that is the concatenation of all the input strings. The original strings are not modified, and the new string is created as a separate object in memory. The concat function can be called using the dot notation on a string object, or it can be called as a static method of the String class. It is a commonly used function in Java programming for combining strings in various applications. Keep reading below to learn how to Java String concat in Kotlin.

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Java String concat in Kotlin With Example Code

Java String concat is a common operation in programming. In Kotlin, you can use the plus operator (+) or the plusAssign operator (+=) to concatenate strings.

To use the plus operator, simply use the operator between two string values:


val str1 = "Hello"
val str2 = "World"
val result = str1 + str2

In this example, the plus operator is used to concatenate the values of str1 and str2, resulting in the value “HelloWorld” being stored in the variable result.

Alternatively, you can use the plusAssign operator to concatenate strings:


var str1 = "Hello"
val str2 = "World"
str1 += str2

In this example, the plusAssign operator is used to concatenate the value of str2 to the end of str1, resulting in the value “HelloWorld” being stored in the variable str1.

Both methods are valid ways to concatenate strings in Kotlin, and which one you choose to use will depend on your specific use case.

Equivalent of Java String concat in Kotlin

In conclusion, Kotlin provides a more concise and efficient way of concatenating strings compared to Java. The plus operator in Kotlin can be used to concatenate strings, making the code more readable and easier to understand. Additionally, Kotlin also provides the option of using the StringBuilder class for more complex string concatenation operations. Overall, Kotlin’s string concatenation features offer a more modern and streamlined approach to string manipulation, making it a great choice for developers looking to improve their coding efficiency.

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