Equality.java challenge on java basics

Question

Could anyone tell what I'm doing wrong?
```Equality.java
// I have imported a java.io.Console for you, it is named console. 
String firstExample = "hello";
if(firstExample.equals("hello")){
  console.printf("first is equal to second");
    System.exit(0);
}
String secondExample = "hello";
 String thirdExample = "HELLO";
```

Ryan Ruscett · Accepted Answer

Hello,
You are saying if firstExample is equal to secondExample. 
There is no need to use the string literal of the secondExample. 
```.java
if(firstExample.equals("hello")){
```
There is also no need for the sys.exit for it's a simple program that will terminate on it's own. Using sys.exit would mean that if it's equal, don't even bother with the rest of the code. Just close the entire program. But we don't want that since we have a second if statement to check in part 2. Only use that if you are sure you want to do that. Like saying quite or something.
This checks to see if firstExample is equal to secondExample in two different ways. By uisng == and .equals.  I also show you the second part of the example that uses ignorecase. 
There are some differences between == and equals for object comparison or functional equality. But as for this stage in the course. Either one will work. 
```java
if (firstExample.equals(secondExample)) {
  console.printf("first is equal to second");
OR
if (firstExample == secondExample) {
  console.printf("first is equal to second");
}
if (firstExample.equalsIgnoreCase(thirdExample)) {
  console.printf("first and third are same ignoring case"); 
}
```
Does this help solve your issue? Let me know if I can clarify anything for you.

Welcome to the Treehouse Community

Looking to learn something new?

Daniele Tsafack

Daniele Tsafack

Equality.java challenge on java basics

Josh Gold

Josh Gold

Daniele Tsafack

Daniele Tsafack

1 Answer

Ryan Ruscett

Ryan Ruscett

Daniele Tsafack

Daniele Tsafack

Josh Gold

Josh Gold