How to Compare Two Strings in Java - Step by Step Examples

How to Compare Two Strings in Java ?

Answer

To compare two strings in Java, you can use the equals() method of the String class or the compareTo() method for lexicographic comparison.

✐ Examples

1 Comparison of Strings in Java using equals()

In this example,

We create two strings named str1 and str2 with different values.
We use the equals() method of str1 to compare it with str2.
The equals() method returns true if the strings are equal, and false otherwise.
Finally, we print the result of the comparison.

Java Program

// Comparison of Strings in Java using equals()
public class Main {
    public static void main(String[] args) {
        String str1 = "Hello";
        String str2 = "hello";
        boolean result = str1.equals(str2);
        System.out.println("Strings are equal: " + result);
    }
}

Output

Strings are equal: false

2 Comparison of Strings in Java using compareTo()

In this example,

We create two strings named str1 and str2 with different values.
We use the compareTo() method of str1 to compare it with str2.
The compareTo() method returns 0 if the strings are equal, a negative value if str1 is lexicographically less than str2, and a positive value otherwise.
Finally, we print the result of the comparison.

Java Program

// Comparison of Strings in Java using compareTo()
public class Main {
    public static void main(String[] args) {
        String str1 = "Hello";
        String str2 = "hello";
        int result = str1.compareTo(str2);
        System.out.println("Comparison result: " + result);
    }
}

Output

Comparison result: -32

Summary

In this tutorial, we learned How to Compare Two Strings in Java language with well detailed examples.

◀ Previous Next ▶

Java Tutorials

Java How-Tos

How to Compare Two Strings in Java - Step by Step Examples

How to Compare Two Strings in Java ?

Answer

✐ Examples

1 Comparison of Strings in Java using equals()

Java Program

Output

2 Comparison of Strings in Java using compareTo()

Java Program

Output

Summary

More Java Strings Tutorials