findsubset.java

package mypro;

public class findsubset {
	public static void findSubset(String str,String ans, int  i) {
		// base case
		if (i==str.length()) {
			System.out.println(ans);
			return;
		}
		// Yes choice
		findSubset(str, ans+str.charAt(i),i+1);
		// No choice
		findSubset(str,ans,i+1);
		
		
	}

	public static void main(String[] args) {
		String str="abc";
		findSubset(str," ",0);

	}

}