Java Tutorial : Java StringBuffer [indexOf(String str) method]

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Java Tutorial : Java StringBuffer [indexOf(String str) method]

IndexOfDemo.java

/*
 * public int indexOf(String str)
 * 
 * Parameters: 
 * ----------
 * str - any string.
 * 
 * Returns: 
 * ------- 
 * if the string argument occurs as a
 * substring within this object, then the index of the
 * first character of the first such substring is
 * returned; if it does not occur as a substring, -1 is
 * returned.
 */
public class IndexOfDemo
{

    public static void main(String[] args)
    {
        String str = "Welcome.com";
        StringBuffer sb = new StringBuffer(str);

        int indexPosition = sb.indexOf("com"); // returns 3
        System.out.println("indexOf(\"com\") = " + indexPosition);

        indexPosition = sb.indexOf("abc");// returns -1
        System.out.println("indexOf(\"abc\") = " + indexPosition);

    }
}

Output

indexOf("com") = 3
indexOf("abc") = -1

Click the below link to download the code:
https://sites.google.com/site/javaee4321/java/StringBufferDemo_indexOf_str_App.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/StringBufferDemo_indexOf_str_App

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/b619d82bc2ef649a34c8b32345e1c58e65ad78f7/BasicJava/StringBufferDemo_indexOf_str_App/?at=master

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