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Java Java Basics Perfecting the Prototype String Equality

Stuck at Stage 3 Challenge Task 1 of 2

for some reason i'm stuck, i can't get around this one.

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

3 Answers

Stone Preston
Stone Preston
42,016 Points

task 1 states: Add an if statement that checks to see if firstExample is equal to secondExample. If it is, print out "first is equal to second".

to test if one string equals another, you use the equals method.

the documentation on the String class (specifically the equals method) states:

public boolean equals(Object anObject) Compares this string to the specified object. The result is true if and only if the argument is not null and is a String object that represents the same sequence of characters as this object.

so the equals method returns true if the String you call the method on has the same sequence as characters as the String object you pass in to it

myString.equals(someOtherString) // returns true if myString and someOtherString have the same character sequence

so to test if firstExample is equal to the secondExample you would use:

String firstExample = "hello";
String secondExample = "hello";
String thirdExample = "HELLO";

if (firstExample.equals(secondExample)) {
  console.printf("first is equal to second");
}

this is what i was doing, the only difference is that i was placing it in the between the 2nd and 3rd line!

Stone Preston
Stone Preston
42,016 Points

i tried that and passed task 1 using:

// I have imported a java.io.Console for you, it is named console. 
String firstExample = "hello";
String secondExample = "hello";
if (firstExample.equals(secondExample)) {
  console.printf("first is equal to second");
}
String thirdExample = "HELLO";

i will look into it

cheers Stone