ex_treemap.java

来自「JAVA_7 JAVA_7 JAVA_7 JAVA_7 JAVA_7 JAVA_」· Java 代码 · 共 16 行

package ch7;
import java.util.*;
public class Ex_TreeMap {
    public static void main(String[] args) {
        TreeMap map = new TreeMap();
        /*
        map.put("A", "SCJP");
        map.put(new Integer(100), new Integer(100));
        map.put(new Object(), "SCBCD");
        */
        map.put("A", "SCJP");
        map.put("B", new Integer(100));
        map.put("C", "SCBCD");
        System.out.println(map.toString());
    }
}