Java Float erros

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package teste;

/**
 *
 * @author gustavo
 */
public class Teste {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        System.out.print(( 139.70 ) - ( 10.0 * 13.97 ));
        System.out.println();
        System.out.print(Math.floor((0.1+0.7)*10));
    }
}