Technical Details<\/h3>\n
Returns a boolean value: True if the strings are identical and ignore case differences False if the string isn’t equal.<\/p>\n
How to use equalsIgnoreCase in Java?<\/h3>\nExample 1: Java String equalsIgnoreCase()<\/h4>\n\n- If you take no account of the differences in cases, str1 and str2 are equal. Hence, str1. equalsIgnoreCase(str2) returns true.<\/li>\n
- It is not the same between str1 and str3. Hence, str1. equalsIgnorecase.str3 and str3. equalsIgnoreCase(str1) returns false.<\/li>\n<\/ul>\n
Syntax:<\/strong><\/p>\nThe syntax of this method is shown here.<\/p>\n
public boolean equalsIgnoreCase(String otherString)<\/p>\n
Parameters:<\/h4>\n
Details of the parameters are given here.
\nanotherString – A string that compares this string to it.<\/p>\n
Return value:<\/h4>\n
If the argument is not null and the strings are case insensitive or otherwise false, this method returns true.<\/p>\n
Example:<\/strong><\/p>\npublic class Techvidvan{\n public static void main(String args[]) {\n String Str1 = new String(\"This is really not immutable!!\");\n String Str2 = Str1;\n String Str3 = new String(\"This is really not immutable!!\");\n String Str4 = new String(\"This IS REALLY NOT IMMUTABLE!!\");\n boolean retVal;\n retVal = Str1.equals( Str2 );\n System.out.println(\"Returned Value = \" + retVal );\n retVal = Str1.equals( Str3 );\n System.out.println(\"Returned Value = \" + retVal );\n retVal = Str1.equalsIgnoreCase( Str4 );\n System.out.println(\"Returned Value = \" + retVal );\n }\n}<\/pre>\nOutput:<\/strong>
\nReturned Value = true
\nReturned Value = true
\nReturned Value = true<\/p>\nDifference between equals() vs equalsIgnoreCase() in Java:<\/h3>\n
Check whether a pair of strings are equal by using the equals() function in Java. In Java, to check for an equal representation of two strings that ignore a case, use equalsIgnoreCase().<\/p>\n
So, let me give you two strings<\/p>\n
\n- String one =”qwerty”;<\/li>\n
- String two = “Qwerty”;<\/li>\n<\/ul>\n
The two of them are identical, but the case is different. When the method excludes a case, it would consider both of these strings to be equivalent by means of equalsIgnoreCase().<\/p>\n
Example:<\/strong><\/p>\npublic class Techvidvan{\n public static void main(String[] args) {\n String one = \"qwerty\";\n String two = \"Qwerty\";\n if(one.equalsIgnoreCase(two)) {\n System.out.println(\"String one is equal to two (ignoring the case) i.e. one==two\");\n }\nelse{\n System.out.println(\"String one is not equal to String two (ignoring the case) i.e. one!=two\");\n }\n if(one.equals(two)) {\n System.out.println(\"String one is equal to two i.e. one==two\");\n }\nelse{\n System.out.println(\"String one is not equal to String two i.e. one!=two\");\n }\n }\n}<\/pre>\n
- \n
- If you take no account of the differences in cases, str1 and str2 are equal. Hence, str1. equalsIgnoreCase(str2) returns true.<\/li>\n
- It is not the same between str1 and str3. Hence, str1. equalsIgnorecase.str3 and str3. equalsIgnoreCase(str1) returns false.<\/li>\n<\/ul>\n
Syntax:<\/strong><\/p>\n
The syntax of this method is shown here.<\/p>\n
public boolean equalsIgnoreCase(String otherString)<\/p>\n
Parameters:<\/h4>\n
Details of the parameters are given here.
\nanotherString – A string that compares this string to it.<\/p>\nReturn value:<\/h4>\n
If the argument is not null and the strings are case insensitive or otherwise false, this method returns true.<\/p>\n
Example:<\/strong><\/p>\n
public class Techvidvan{\n public static void main(String args[]) {\n String Str1 = new String(\"This is really not immutable!!\");\n String Str2 = Str1;\n String Str3 = new String(\"This is really not immutable!!\");\n String Str4 = new String(\"This IS REALLY NOT IMMUTABLE!!\");\n boolean retVal;\n retVal = Str1.equals( Str2 );\n System.out.println(\"Returned Value = \" + retVal );\n retVal = Str1.equals( Str3 );\n System.out.println(\"Returned Value = \" + retVal );\n retVal = Str1.equalsIgnoreCase( Str4 );\n System.out.println(\"Returned Value = \" + retVal );\n }\n}<\/pre>\nOutput:<\/strong>
\nReturned Value = true
\nReturned Value = true
\nReturned Value = true<\/p>\nDifference between equals() vs equalsIgnoreCase() in Java:<\/h3>\n
Check whether a pair of strings are equal by using the equals() function in Java. In Java, to check for an equal representation of two strings that ignore a case, use equalsIgnoreCase().<\/p>\n
So, let me give you two strings<\/p>\n
- \n
- String one =”qwerty”;<\/li>\n
- String two = “Qwerty”;<\/li>\n<\/ul>\n
The two of them are identical, but the case is different. When the method excludes a case, it would consider both of these strings to be equivalent by means of equalsIgnoreCase().<\/p>\n
Example:<\/strong><\/p>\n
public class Techvidvan{\n public static void main(String[] args) {\n String one = \"qwerty\";\n String two = \"Qwerty\";\n if(one.equalsIgnoreCase(two)) {\n System.out.println(\"String one is equal to two (ignoring the case) i.e. one==two\");\n }\nelse{\n System.out.println(\"String one is not equal to String two (ignoring the case) i.e. one!=two\");\n }\n if(one.equals(two)) {\n System.out.println(\"String one is equal to two i.e. one==two\");\n }\nelse{\n System.out.println(\"String one is not equal to String two i.e. one!=two\");\n }\n }\n}<\/pre>\n
![\"equalsIgnoreCase()](\"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/sites\/2\/2023\/10\/equalsIgnoreCase-explanation-1.webp\")
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