Java Class getDeclaredMethods() Method

The getDeclaredMethods() method of java Class class returns an array of method objects representing all the methods defined in this class object. If no method is declared, then it returns an array of length 0.

Syntax

Parameter

Returns

An array of method object.

Throws

Security Exception

Example 1

//import statements  
import java.lang.reflect.*;

public class ClassgetDeclaredMethodsExample1 {

   public static void main(String[] args) {
    
      ClassgetDeclaredMethodsExample1 obj = new ClassgetDeclaredMethodsExample1();
      Class class1 = obj.getClass();

      try {          
         // parameter type is null
         Method mthd[] = class1.getDeclaredMethods();
         
         
         for(int i = 0; i < mthd.length; i++) {
            System.out.println("Method (" +(i+1)+ ")" +mthd[i].toString()); //get the methods and convert into string
         }
      } catch(Exception e) {
         System.out.println(e.toString());  //print the exceptio object e
      }
   }

   private Integer showmethod() {
      return 1;
   }   
   public void showIntegermethod(Integer i) {
      this.i = i;
   }
   
    public void showFloatmethod(float i) {
      this.f = f;
   }
   public int i = 88655;
   float f=3;   
}

Test it Now

Output:

Method (1)public static void ClassgetDeclaredMethodsExample1.main(java.lang.String[])
Method (2)public void ClassgetDeclaredMethodsExample1.showIntegermethod(java.lang.Integer)
Method (3)private java.lang.Integer ClassgetDeclaredMethodsExample1.showmethod()
Method (4)public void ClassgetDeclaredMethodsExample1.showFloatmethod(float)

Example 2

//import statements
import java.lang.reflect.Method;

public class ClassgetDeclaredMethodsExample2 {

    public static void main(String... args) throws NoSuchMethodException {
        Class<Sample1> obj = Sample1.class;
         
        
        Method mthd[] = obj.getDeclaredMethods();
         
         
         for(int i = 0; i < mthd.length; i++) {
            System.out.println("Method (" +(i+1)+ ")" +mthd[i].toString()); //get the methods and convert into string
    }
    }

      private static class Sample1 {
        private void Method1() { }

        public void Methodint(int i) { }
    }

}

Test it Now

Output:

Method (1)private void ClassgetDeclaredMethodsExample2$Sample1.Method1()
Method (2)public void ClassgetDeclaredMethodsExample2$Sample1.Methodint(int)

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