Java 字串搜尋「String indexOf() Method」

Java 字串搜尋「String indexOf() Method」

Java 字串搜尋「String indexOf() Method」

拷貝來源:http://www.tutorialspoint.com/java/java_string_indexof.htm

程式碼:

import java.io.*;
public class Test {
public static void main(String args[]) {
String Str = new String("Welcome to Tutorialspoint.com");
String SubStr1 = new String("Tutorials");
String SubStr2 = new String("Sutorials");
System.out.print("Found Index :" );
System.out.println(Str.indexOf( 'o' ));
System.out.print("Found Index :" );
System.out.println(Str.indexOf( 'o', 5 ));
System.out.print("Found Index :" );
System.out.println( Str.indexOf( SubStr1 ));
System.out.print("Found Index :" );
System.out.println( Str.indexOf( SubStr1, 15 ));
System.out.print("Found Index :" );
System.out.println(Str.indexOf( SubStr2 ));
}
}

運算結果:

Found Index :4
Found Index :9
Found Index :11
Found Index :-1
Found Index :-1

 

發表迴響

你的電子郵件位址並不會被公開。 必要欄位標記為 *