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public class Hello {
 private String codeing;
 public String getCodeing() {
  return codeing + " Hello!";
 }
 public void setCodeing(String codeing) {
  this.codeing = codeing;
 }
}
package junit;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import junit.framework.Assert;
import junit.framework.TestCase;
public class TestHello extends TestCase{
 
 public void testDplit() throws ClassNotFoundException, NoSuchMethodException, IllegalAccessException, IllegalArgumentException, InvocationTargetException, InstantiationException{
  
  Class c = Class.forName("Hello");
  Method m1 = c.getDeclaredMethod("setCodeing", String.class);
  Object ins = c.newInstance();
  m1.invoke(ins, "qh");
  
  Method m2 = c.getDeclaredMethod("getCodeing");
  Assert.assertEquals((String)m2.invoke(ins),"qh Hello!");
 }
}