How to Java String matches in Go

The Java String matches function is a method that checks whether a string matches a specified regular expression. It returns a boolean value indicating whether the entire string matches the regular expression or not. The regular expression is a pattern that defines a set of strings, and the matches function compares the input string with this pattern. If the input string matches the pattern, the function returns true; otherwise, it returns false. The matches function is useful for validating user input, searching for specific patterns in a string, and manipulating strings based on certain criteria. Keep reading below to learn how to Java String matches in Go.

Looking to get a head start on your next software interview? Pickup a copy of the best book to prepare: Cracking The Coding Interview!

Buy Now On Amazon

Java String matches in Go With Example Code

Java String matches in Go can be achieved using the regular expression package in Go. The regular expression package provides a way to match a string against a regular expression pattern.

To use the regular expression package, you need to import the “regexp” package. Here’s an example code snippet that demonstrates how to use the “regexp” package to match a string against a regular expression pattern:

package main


import (

    "fmt"

    "regexp"

)
func main() {

    pattern := "hello"

    str := "hello world"
    matched, err := regexp.MatchString(pattern, str)

    if err != nil {

        fmt.Println("Error:", err)

        return

    }

if matched { fmt.Println("Match found!") } else { fmt.Println("Match not found!") } }

In the above code, we are matching the string “hello world” against the regular expression pattern “hello”. The “MatchString” function returns a boolean value indicating whether the string matches the pattern or not.

You can also use regular expression literals in Go. Here’s an example:

package main


import (

    "fmt"

    "regexp"

)
func main() {

    matched, err := regexp.MatchString("hello", "hello world")

    if err != nil {

        fmt.Println("Error:", err)

        return

    }

if matched { fmt.Println("Match found!") } else { fmt.Println("Match not found!") } }

In this example, we are using a regular expression literal “hello” instead of a string variable.

In conclusion, Go provides a powerful regular expression package that can be used to match strings against regular expression patterns. With the help of this package, you can easily perform string matching operations in Go.

Equivalent of Java String matches in Go

In conclusion, the equivalent function to Java’s String matches() in Go is the regexp.MatchString() function. While the syntax and usage may differ slightly between the two languages, the underlying functionality remains the same. Both functions allow for the matching of regular expressions against a given string, providing a powerful tool for string manipulation and pattern recognition. Whether you are a Java developer looking to transition to Go, or a Go developer looking to expand your string manipulation capabilities, understanding the similarities and differences between these two functions is essential. With the help of the regexp package in Go, developers can easily implement regular expression matching in their code, opening up a world of possibilities for string manipulation and pattern recognition.