public int lastIndexOf(String str);

public int lastIndexOf(String str, int fromIndex);

package in.bench.resources.stringbuilder.methods;

public class StringBuilderLastIndexOfMethod {

	/**
	 * lastIndexOf() - starts searching from backward
	 * prints index-position from left-to-right -
	 * very similar to indexOf() method
	 * @param args
	 */
	public static void main(String[] args) {

		// StringBuilder
		StringBuilder sb = new StringBuilder(
				"North is North and South is South");

		// 1. To get LAST index of substring 'North'
		int lastIndexOfSubstring1 = sb.lastIndexOf("North");

		// print to console
		System.out.println("1. Last index of substring"
				+ " 'North' is : " + lastIndexOfSubstring1);

		// 2. To get LAST index of substring 'South'
		int lastIndexOfSubstring2 = sb.lastIndexOf("South");

		// print to console
		System.out.println("2. Last index of substring"
				+ " 'South' is : " + lastIndexOfSubstring2);
	}
}

1. Last index of substring 'North' is : 9
2. Last index of substring 'South' is : 28

package in.bench.resources.stringbuilder.methods;

public class StringBuilderLastIndexOfMethod2 {

	/**
	 * lastIndexOf() - starts searching from backward
	 * prints index-position from left-to-right -
	 * very similar to indexOf() method
	 * @param args
	 */
	public static void main(String[] args) {

		// StringBuilder
		StringBuilder sb = new StringBuilder(
				"North is North and South is South");

		// 1. To get LAST index of substring 'North',
		// starting from 20th position
		int lastIndexOfSubstring = sb.lastIndexOf("North", 20);

		// print to console
		System.out.println("1. Last index of substring 'North',"
				+ " starting from 8th position is  : "
				+ lastIndexOfSubstring);

		// 2. To get LAST index of substring 'South',
		// starting from 21st position
		int lastIndexOfSubstringFrom= sb.lastIndexOf("South", 31);

		// print to console
		System.out.println("2. Last index of substring 'South', "
				+ "starting from 21st position is : "
				+ lastIndexOfSubstringFrom);
	}
}

1. Last index of substring 'North',
								starting from 8th position is  : 9
2. Last index of substring 'South',
							   starting from 21st position is : 28