类型转换

public class Demo0 {
    public static void main(String[] args) {
        /*
            字符串类型转基本数据类型
         */
        int a = Integer.parseInt("11");
        double d = Double.parseDouble("55.5");
        boolean b = Boolean.parseBoolean("false");
        /*
            a = 11
            d = 55.5
            b = false
         */
        System.out.println("a = " + a);
        System.out.println("d = " + d);
        System.out.println("b = " + b);
        /*
            基本类型转字符串
         */
        String istr=String.valueOf(a);
        String dstr=String.valueOf(d);
        String bstr=String.valueOf(b);
        /*
            istr = 11
            dstr = 55.5
            bstr = false
         */
        System.out.println("istr = " + istr);
        System.out.println("dstr = " + dstr);
        System.out.println("bstr = " + bstr);
    }
}