Constructor toGenericString() method in Java with Examples
Last Updated :
29 Oct, 2019
The toGenericString() method of java.lang.reflect.Constructor class is used to return get the generic form of this constructor, i.e. a string representing the details about this constructor including the type parameters.
Syntax:
public String toGenericString()
Parameters: This method accepts nothing.
Return: This method returns a generic form of this constructor as a string that describes this Constructor along with the type parameters.
Below programs illustrate toGenericString() method:
Program 1:
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
public class GFG {
public static void main(String[] args)
{
Class classObj = shape.class;
Constructor[] cons = classObj.getConstructors();
String str = cons[0].toGenericString();
System.out.println("Constructor : " + str);
}
public class shape {
public shape(Object... objects)
{
}
}
}
|
Output:
Constructor : public GFG$shape(GFG, java.lang.Object...)
Program 2:
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
public class GFG {
public static void main(String[] args)
{
Class classObj = String.class;
Constructor[] cons
= classObj.getConstructors();
for (int i = 0; i < cons.length; i++) {
String str = cons[i].toGenericString();
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#toGenericString()
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