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Java Java Basics Perfecting the Prototype String Equality

Posted by Tyrone Taylor
Tyrone Taylor
Courses Plus Student 11,792 Points

code challenge

how do you compare the two string in the same if statement

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

if ( firstExample, thirdExample == equalsIgnoringCase) {
console.printf("first and third are same ignoring case");
}

2 Answers

James Simshaw
James Simshaw
28,738 Points

In Java Strings are objects so to compare them you have to use

string1.equals(string2)

This is true when comparing two objects of compatible types.

Dan Johnson
Dan Johnson
40,533 Points
Dan Johnson
Dan Johnson
40,533 Points

"equalsIgnoreCase" is a method of the String class. You can call it like any other method:

firstExample.equalsIgnoreCase(thirdExample)

As James mentions you'll want to use the "equals" method when comparing the contents of the Strings. The == operator checks if two references are identical, in that they both refer to the same object in memory.