toLowerCase(loc)方法使用

package lianxii;

import java.util.Locale;

public class Local {

    public static void main(String[] args) {

        String str = "ThIs Is HaRd";
        Locale loc = Locale.getDefault();//可以去掉这步
        String lowerStr = str.toLowerCase(loc);
        String upperStr = str.toUpperCase(loc);

        System.out.println("old = " + str);
        System.out.println("lowercase = " + lowerStr);
        System.out.println("upperStr=" + upperStr);
    }

}

//结果：
//old = ThIs Is HaRd
//lowercase = this is hard
//upperStr=THIS IS HARD
//Book.java链接：http://jinlovejava.iteye.com/blog/2128158
//注：这里str是直接给出值，不像Book.java，set、get然后再往里设置值