{"id":89405,"date":"2025-10-07T18:00:08","date_gmt":"2025-10-07T12:30:08","guid":{"rendered":"https:\/\/techvidvan.com\/tutorials\/?p=89405"},"modified":"2025-10-07T18:36:52","modified_gmt":"2025-10-07T13:06:52","slug":"java-string-startswith-method","status":"publish","type":"post","link":"https:\/\/techvidvan.com\/tutorials\/java-string-startswith-method\/","title":{"rendered":"Java String startsWith() Method with Examples"},"content":{"rendered":"

The Java string startsWith system can take in two parameters. String prefix( mandatory)- It’s used to check whether” this” string( on which the function is called) starts with the given prefix. It’s also a string. Int neutralise (voluntary)- It checks the substring of a string starting from the given indicator.<\/p>\n

String startswith()<\/h2>\n

The Java String class startsWith() system checks if this string starts with the given prefix. It returns true if this string starts with the given prefix; fresh returns false.<\/p>\n

Hand<\/h3>\n

The syntax of the startWith() system is given below.<\/b><\/p>\n

public boolean startsWith( String prefix)\r\npublic boolean startsWith( String prefix, int neutralize)<\/pre>\n
Parameter<\/strong><\/p>\n
prefix Sequence of characters
\nneutralise the indicator from where the matching of the string prefix starts.<\/p>\n
Syntax<\/strong><\/p>\n
string.startswith(value, start, end)<\/pre>\n
Parameter Values<\/h3>\n\n\n\n\n\n\n
Parameter<\/b><\/td>\nDescription<\/b><\/td>\n<\/tr>\n
value<\/span><\/td>\nneeded. The value to check if the string starts with<\/span><\/p>\n
start<\/span><\/td>\n<\/tr>\n
start<\/span><\/td>\nOptional. An Integer specifying at which position to start the hunt end<\/span><\/td>\n<\/tr>\n
end<\/span><\/td>\nOptional. An Integer specifying at which position to end the hunt<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Returns<\/strong><\/p>\n
true or false<\/p>\n
Internal perpetration of startsWith( String prefix, int toffset)<\/h3>\n
public boolean startsWith( String prefix, int toffset){\r\nhousekeeper ta() = value;\r\nint to = toffset;\r\nhousekeeper dad() = prefix.value;\r\nint po = 0;\r\nint pc = prefix.value.length;\r\n\/ Note toffset might be near-1>>> 1.\r\nif(( toffset< 0)||( toffset>value.length- pc)){\r\nreturn false;\r\nwhile(-- pc> = 0){\r\nif( ta( to)! = dad( po)){\r\nreturn false;\r\nreturn true;<\/pre>\n
Internal perpetration of startsWith( String prefix,)<\/h3>\n
\/\/ Since the neutralize isn't mentioned in this type of startWith() system, the neutralize is\r\n\/\/ considered as 0.\r\npublic boolean startsWith( String prefix)\r\n\/ the neutralize is 0\r\nreturn startsWith( prefix, 0);\r\n}<\/pre>\n
Java String startsWith() system<\/h3>\n
illustration<\/h4>\n
The startsWith() system considers the case-perceptivity of characters. Consider the following illustration.<\/p>\n
public class  TechVidvanStartsWithExample\r\n\/ main system\r\npublic static void main( String args())\r\n\/ input string\r\nString s1 = \" TechVidvan for java string\";\r\n(s1.startsWith(\" Te\"));\/\/ true\r\n(s1.startsWith(\"TechVidvan\"));\/\/ true\r\n(s1.startsWith(\"techVidvan\"));\/\/ false as't' and'T' are different<\/pre>\n
Output<\/strong>
\nTrue
\nTrue
\nFalse<\/p>\n
Java String startsWith( String prefix, int neutralize) Method<\/h3>\n
It’s an overloaded system of the startWith() method that’s used to pass a redundant argument (neutralise) to the function. The system works by neutralising the past.<\/p>\n
Let’s see an illustration.<\/strong><\/p>\n
public class TechVidvan{\r\npublic static void main( String() args){\r\nString str = \" TechVidvan\";\r\n\/ no neutralize mentioned; hence, neutralize is 0 in this case.\r\n(str.startsWith(\" T\"));\/\/ True\r\n\/ no neutralize mentioned; hence, neutralize is 0 in this case.\r\n(str.startsWith(\" e\"));\/\/ False\r\n\/ offset is 1\r\n(str.startsWith(\" e\", 1));\/\/ True\r\n}<\/pre>\n
Output<\/strong>
\ntrue
\nfalse
\nTrue<\/p>\n
Java String startsWith() Method<\/h3>\n
Still, it also has no impact on the string if we add an empty string to the beginning of the string.<\/p>\n
\"\"\" Tokyo Olympics\" = \" Tokyo Olympics\" s<\/pre>\n
It means one can say that a string in Java always starts with the empty string. Let’s confirm the same with the help of Java law.<\/p>\n
public class TechVidvanStartsWith\r\n\/ main system\r\npublic static void main( String argvs())\r\n\/ input string\r\nString str = \" TechVidvan inJava\";\r\nif(str.startsWith(\"\"))\r\n(\" The string starts with the empty string.\");\r\nadditional\r\nSystem.\r\n(\" The string doesn't start with the empty string.\");<\/pre>\n
Output<\/strong>
\nThe string starts with the empty string.<\/p>\n
Conclusion<\/h3>\n
The String startsWith() system is used to check whether a string starts with the given prefix. It returns a Boolean value if the string begins with the handed prefix, else it returns false. It has two parameters- prefix and neutralise.<\/p>\n","protected":false},"excerpt":{"rendered":"
The Java string startsWith system can take in two parameters. String prefix( mandatory)- It’s used to check whether” this” string( on which the function is called) starts with the given prefix. It’s also a...<\/p>\n","protected":false},"author":6,"featured_media":447368,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[183],"tags":[270,5709,5710,263,327,250,5711],"class_list":["post-89405","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","tag-java-string-startswith","tag-java-string-startswith-method","tag-java-string-startswith-method-with-examples","tag-java-tutorial-for-beginners","tag-java-tutorials","tag-learn-java","tag-string-startswith-method-in-java"],"yoast_head":"\nJava String startsWith() Method with Examples - TechVidvan<\/title>\n<meta name=\"description\" content=\"The Java String startsWith() Method is used to check whether a string starts with the given prefix. 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