test26.java

SCJP认证考试资料

public class Test26 {
    public static void main(String[] args) {
	String str = "JAVA";
	System.out.println(str+":Hash Code="+str.hashCode());
	makeUpper(str);
	System.out.println(str+":Hash Code="+str.hashCode());
    }
    public static void makeUpper(String s) {
	s = s.toUpperCase();
    }
}