Java Convert String to Float

package com.java.myapp;

public class myClass {

	public static void main(String[] args) {
	   
		String a = new String("123.459"); 
    	
		Float b = Float.valueOf(a);
		
		System.out.println(String.format("%s", b));
		System.out.println(String.format("%.2f", b));
		
    }
	
}