Compare two strings in java using equals and equalsIgnoreCase functions
/* Program to compare two strings ... From technology-mantra.blogspot.in */
public class compare
{
public static void main(String args[])
{
String s1 = "iamthebest";
String s2 = "IAMTHEBEST";
boolean result;
result = s1.equals(s2);
System.out.println("Result is : " + result);
result = s1.equalsIgnoreCase(s2);
System.out.println("Result of Ignore case is : " + result);
}
}
OUTPUT
Result is : FALSE
Result of Ignore case is : TRUE
DOWNLOAD THIS PROGRAM
In this program we used equals() and equalsIgnoreCase() functions of java to compare strings.
Syntax :
Parameters
This function takes an object (string variable) to be compared as a parameter
How to call
Return value
This function returns true if both of the strings are equal. It is case sensitive function i.e it considers "A" and "a" both are different.
Whats happening in the program
In the program we used equals() function to compare two string variables s1 and s2. It returned the boolean value "FALSE" because the strings stored in s1 and s2 variables are not same (case sensitivity)
Syntax
Parameters
This function takes an object (string variable) to be compared as a parameter
How to call
Return value
This function returns true if both of the strings are equal. It is not case sensitive function i.e it considers "A" and "a" both are same.
Whats happening in our program
In the program we used equalsIgnoreCase() function to compare two string variables s1 and s2. It returned the boolean value "TRUE" because the strings stored in s1 and s2 variables are same.
Details about equals() function
Syntax :
public boolean equals(Object anObject)
Parameters
This function takes an object (string variable) to be compared as a parameter
How to call
create two string variables which you want to compare String s1 = "abc"; String s2 = "ABC"; Now create a boolean variable to store output result of this function, this function returns boolean value that's why we are storing the return value in boolean variable. boolean result; Now call this function like this => result = s1.equals(s2);
Return value
This function returns true if both of the strings are equal. It is case sensitive function i.e it considers "A" and "a" both are different.
Whats happening in the program
In the program we used equals() function to compare two string variables s1 and s2. It returned the boolean value "FALSE" because the strings stored in s1 and s2 variables are not same (case sensitivity)
Details about equalsIgnoreCase() function
Syntax
public boolean equalsIgnoreCase(Object anObject)
Parameters
This function takes an object (string variable) to be compared as a parameter
How to call
create two string variables which you want to compare String s1 = "abc"; String s2 = "ABC"; Now create a boolean variable to store output result of this function, this function returns boolean value that's why we are storing the return value in boolean variable. boolean result; Now call this function like this => result = s1.equalsIgnoreCase(s2);
Return value
This function returns true if both of the strings are equal. It is not case sensitive function i.e it considers "A" and "a" both are same.
Whats happening in our program
In the program we used equalsIgnoreCase() function to compare two string variables s1 and s2. It returned the boolean value "TRUE" because the strings stored in s1 and s2 variables are same.
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