Java（学习笔记）String与Int类型转换

 		String a ="12";
        String b ="34";
        int changeA = Integer.parseInt(a);
        int changeB = Integer.parseInt(b);
        System.out.println(changeA);
        System.out.println(changeB);
        //2.Integer类中的valueOf方法
        String c ="56";
        int changeC = Integer.valueOf(c);
        System.out.println(changeC);

 //int类型转化为String类型
        //1.String类的valueOf方法
        int m = 123456;
        int n = 456;
        String changeM = String.valueOf(m);
        System.out.println(changeM);
        //2.Integer类的toString方法
        String changeN = Integer.toString(n);
        System.out.println(changeN);