Thursday, September 4, 2025
HomeLanguagesJavaConstructor toString() method in Java with Examples

Constructor toString() method in Java with Examples

The toString() method of java.lang.reflect.Constructor class is used to return string representation of this Constructor.This string is the collection of all the properties of this constructor. For creating this string method adds access modifiers of the constructor with the name of the declaring class of constructor then add parenthesized and add a comma-separated list of the constructor’s formal parameter types together.

Syntax:

public String toString()

Parameters: This method accepts nothing.

Return: This method returns string describing this Constructor.

Below programs illustrate toString() method:
Program 1:




// Java program to illustrate toString() method
  
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
  
public class GFG {
  
    public static void main(String[] args)
    {
        // create a class object
        Class classObj = shape.class;
  
        // get Constructor object
        // array from class object
        Constructor[] cons = classObj.getConstructors();
  
        // check get string representation
        String str = cons[0].toString();
  
        // print result
        System.out.println("Constructor : " + str);
    }
  
    public class shape {
  
        public shape(Object... objects)
        {
        }
    }
}


Output:

Constructor : public GFG$shape(GFG, java.lang.Object[])

Program 2:




// Java program to illustrate toString() method
  
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
  
public class GFG {
  
    public static void main(String[] args)
    {
        // create a class object
        Class classObj = String.class;
  
        // get Constructor object
        // array from class object
        Constructor[] cons = classObj.getConstructors();
  
        for (int i = 0; i < cons.length; i++) {
  
            String str = cons[i].toString();
  
            // print result
            System.out.println(str);
        }
    }
}


Output:

public java.lang.String(byte[], int, int)
public java.lang.String(byte[], java.nio.charset.Charset)
public java.lang.String(byte[], java.lang.String) throws java.io.UnsupportedEncodingException
public java.lang.String(byte[], int, int, java.nio.charset.Charset)
public java.lang.String(byte[], int, int, java.lang.String) throws java.io.UnsupportedEncodingException
public java.lang.String(java.lang.StringBuilder)
public java.lang.String(java.lang.StringBuffer)
public java.lang.String(byte[])
public java.lang.String(int[], int, int)
public java.lang.String()
public java.lang.String(char[])
public java.lang.String(java.lang.String)
public java.lang.String(char[], int, int)
public java.lang.String(byte[], int)
public java.lang.String(byte[], int, int, int)

References: https://docs.oracle.com/javase/10/docs/api/java/lang/reflect/Constructor.html#toString()

Dominic
Dominichttp://wardslaus.com
infosec,malicious & dos attacks generator, boot rom exploit philanthropist , wild hacker , game developer,
RELATED ARTICLES

Most Popular

Dominic
32261 POSTS0 COMMENTS
Milvus
81 POSTS0 COMMENTS
Nango Kala
6626 POSTS0 COMMENTS
Nicole Veronica
11795 POSTS0 COMMENTS
Nokonwaba Nkukhwana
11855 POSTS0 COMMENTS
Shaida Kate Naidoo
6747 POSTS0 COMMENTS
Ted Musemwa
7023 POSTS0 COMMENTS
Thapelo Manthata
6695 POSTS0 COMMENTS
Umr Jansen
6714 POSTS0 COMMENTS