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Use String lastIndexOf to find a character in a string

public class MainClass {    public static void main( String args[] )    {       String letters = "abcdefghijklmabcdefghijklm";       System.out.printf( "Last 'c' is located at index %d\n",           letters.lastIndexOf( 'c' ) );        System.out.printf( "Last 'a' is located at index %d\n",           letters.lastIndexOf( 'a', 25 ) );        System.out.printf( "Last '$' is located at index %d\n\n",           letters.lastIndexOf( '$' ) );    } } Last 'c' is located at index 15 Last 'a' is located at index 13 Last '$' is located at index -1