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Java Java Basics Perfecting the Prototype String Equality

Nikita Struggs
Nikita Struggs
2,642 Points
Posted by Nikita Struggs
Nikita Struggs
2,642 Points

java basics

stuck

Equality.java 
// I have imported a java.io.Console for you, it is named console. 
String firstExample = "hello";
String secondExample = "hello";
String thirdExample = "HELLO";

1 Answer

Simon Coates
Simon Coates
28,694 Points
Simon Coates
Simon Coates
28,694 Points

try 

// I have imported a java.io.Console for you, it is named console. 
String firstExample = "hello";
String secondExample = "hello";
String thirdExample = "HELLO";

if(firstExample.equals(secondExample)) {
  console.printf("first is equal to second.");
}
Simon Coates
Simon Coates
28,694 Points
Simon Coates
Simon Coates
28,694 Points

you can use == with primitive values, YOU ABSOLUTELY POSITIVELY DO NOT WANT TO DO THIS WITH OBJECTS LIKE STRING. A lot of classes define a .equals method that is more predictable (you should still read the object's documentation to make sure).

for the method for ignoring case, try https://docs.oracle.com/javase/7/docs/api/java/lang/String.html