Thread: Java error "java.util.UnknownFormatConversionException"

Why do I get this error?
Code:

Exception in thread "main" java.util.UnknownFormatConversionException: Conversio n = '5' at java.util.Formatter.checkText
 
(Formatter.java:2502) at java.util.Formatter.parse(Formatter.java:2484) at java.util.Formatter.format(Formatter.java:2413) at 
 
java.io.PrintStream.format(PrintStream.java:920) at java.io.PrintStream.printf(PrintStream.java:821) at Maclaurin1.main(Maclaurin1.java:55) 
 
Press any key to continue . . .

All I want to do is convert a number from degrees to radians (Math.toRadians())and find the Math.sin and Math.cos of it

Heres a snippet of the code:

 	public static void main(String[] args)
 	{
		double x;
		x = (Math.PI)/4;
                double  rad=0;
		double result=0;
		System.out.printf("Evaluate x = %1.0f",x);
		result = sine_evaluate(x);
		System.out.printf("%nSin Result = %5.15f",result);
		result = cos_evaluate(x);
		System.out.printf("%nCos Result = %5.15f%n",result);
		rad=Math.toRadians(x);
                result = Math.sin(rad);
               System.out.printf("%nActual Sine Result = %5.15f%n",result); 
               result = Math.cos(rad);
               System.out.printf("%nActual Cos Result = %5.15f%n",result);
 
	}