shortDescription refactoring

src/main/java/com/zipcoder/payment/Check.java

     }
 
     public String getShortDescription() {
-        StringBuilder sb = new StringBuilder();
-        sb.append("Check ");
-        sb.append(this.payerName + " ");
-        sb.append("****");
-        sb.append(lastFourDigits());
-        return sb.toString();
+        return String.format("Check %s ****%d", this.getPayerName(), lastFourDigits());
     }
 
     public int lastFourDigits(){

src/main/java/com/zipcoder/payment/CreditCard.java

     }
 
     public String getShortDescription() {
-        StringBuilder sb = new StringBuilder();
-
-        sb.append("CC ");
-        sb.append(this.payerName + " ");
-        sb.append(lastFourDigits() + " ");
-        sb.append(this.expiredMonth + "/" + this.expiredYear);
-
-        return sb.toString();
+        return String.format("CC %s %d %d/%d", this.payerName, this.lastFourDigits(), this.expiredMonth, this.expiredYear);
     }
 
     public int lastFourDigits(){

src/main/java/com/zipcoder/payment/Paypal.java

 
 
     public String getShortDescription() {
-        StringBuilder sb = new StringBuilder();
-        sb.append("PayPal ");
-        sb.append(this.payerName + " ");
-        sb.append(this.email);
-        return sb.toString();
+        return String.format("Paypal %s %s", this.payerName, this.email);
     }
 
     public int compareTo(Payment o) {

src/test/java/com/zipcoder/payment/CheckTest.java

 package com.zipcoder.payment;
 
-import org.junit.jupiter.api.Test;
+import static org.junit.Assert.*;
+import org.junit.Test;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertThat;
-import static org.junit.jupiter.api.Assertions.*;
-
-class CheckTest {
+public class CheckTest {
 
     @Test
-    void getId() {
+    public void getId() {
         //When
         Check ck = new Check();
         ck.setId(4456);
     }
 
     @Test
-    void getPayerName() {
+    public void getPayerName() {
         //When
         Check ck = new Check();
         ck.setPayerName("Nicholas");
     }
 
     @Test
-    void getShortDescription() {
+    public void getShortDescription() {
     }
 
 
     @Test
-    void getRoutingNumber() {
+    public void getRoutingNumber() {
         //When
         Check ck = new Check();
         ck.setRoutingNumber("4532353");
     }
 
     @Test
-    void setRoutingNumber() {
+    public void setRoutingNumber() {
         //When
         Check ck = new Check();
         ck.setRoutingNumber("4532353");
     }
 
     @Test
-    void setAccountNumber() {
+    public void setAccountNumber() {
         //When
         Check ck = new Check();
         ck.setAccountNumber("4532353");
     }
 
     @Test
-    void setPayerName() {
+    public void setPayerName() {
         //When
         Check ck = new Check();
         ck.setPayerName("Nick M");
     }
 
     @Test
-    void setId() {
+    public void setId() {
         //When
         Check ck = new Check();
         ck.setId(3423);
     }
 
     @Test
-    void getAccountNumber() {
+    public void getAccountNumber() {
         //When
         Check ck = new Check();
         ck.setAccountNumber("893456");
     }
 
     @Test
-    void getShortDescription1() {
+    public void getShortDescription1() {
         //When
         Check ck = new Check(4563, "Nicholas Maidanos", "45335665", "444545");
 
     }
 
     @Test
-    void compareTo() {
+    public void compareTo() {
     }
 }

src/test/java/com/zipcoder/payment/PaypalTest.java

 package com.zipcoder.payment;
 
-import org.junit.jupiter.api.Test;
 
+import static org.junit.Assert.*;
+import org.junit.Test;
 
-import static org.junit.Assert.assertEquals;
-
-class PaypalTest {
+public class PaypalTest {
 
     @Test
     void setId() {
     @Test
     void getShortDescription() {
         //When
-        Paypal pp = new Paypal(78, "Nicholas Madianos", "nmaidanos@gmail.com");
+        Paypal pp = new Paypal(78, "Nicholas Maidanos", "nmaidanos@gmail.com");
 
         //Expect
-        String expect = "PayPal Nicholas Madianos nmaidanos@gmail.com";
+        String expect = "PayPal Nicholas Maidanos nmaidanos@gmail.com";
 
         //Actual
         String actual = pp.getShortDescription();