What restrictions are placed on method overloading?

Two methods may not have the same name and argument list but different return types.

MethodOverloadingDemo.java

class Method123
{
    void meth()
    {
      System.out.println("No parameter method");
    }
	
    void meth(int n)
    {
      System.out.println("The value of n is:" +n);
    }
	
    void meth(int a, int b)
    {
      System.out.println("The value of a and b is" +a + " " +b);
    }
	
    double meth (double m)
    {
	    System.out.println("The value of m is:" +m);
		return (m*m);
    }
}

class MethodOverloadingDemo
{
	public static void main(String arg[])
    {
	Method123 d =new Method123();
    double result;

	d.meth();
    d.meth(10);
    d.meth(10,20);
    result=d.meth(3.14);
	
    System.out.println("The Result of d.Method(3.14) is:" +result);
	}
}