How to determine what a string starts with in java

Function introduction:

startsWith() The method is used to detect whether the string starts with the specified prefix.

Syntax:

public boolean startsWith(String prefix, int toffset)

or

public boolean startsWith(String prefix)

Return value:

Returns true if the string starts with the specified prefix; otherwise returns false.

Recommended free learning videos: java free video tutorial

endsWith() The method is used to test whether the string ends with the specified suffix.

Syntax:

public boolean endsWith(String suffix)

Return value:

If the character sequence represented by the parameter is the suffix of the character sequence represented by this object, return true; otherwise, return false .

Note that if the parameter is an empty string, or equal to this String object (determined using the equals(Object) method), the result is true.

Examples are as follows:

Java determines whether String begins with a certain string:

String mobile = "8618730600000";
System.out.println(mobile.startsWith("86"));//输出true
System.out.println(mobile.startsWith("886"));//输出false

Java determines whether String ends with a certain string:

String mobile = "8618730600000";
System.out.println(mobile.endsWith("0000"));//输出true
System.out.println(mobile.endsWith("8888"));//输出false

If you want to learn more related knowledge, please visit: java introductory tutorial

The above is the detailed content of How to determine what a string starts with in java. For more information, please follow other related articles on the PHP Chinese website!