import java.util.*;
public class fffff {
String str1;
String str2;
fffff[] ff=new fffff[3];
List<fffff> li=new ArrayList<fffff>();
public fffff(){
this.setName();
}
public fffff(String str1,String str2){
this.str1=str1;
this.str2=str2;
}
public void setName(){
for(int i=0;i<3;i++){
ff[i]=new fffff("dd"+i,"ff"+i);
li.add(ff[i]);
}
}
public void showName(){
Iterator <fffff>it=li.iterator();
while(it.hasNext()){
Object ob= it.next();
System.out.println(ob);
}
}
public static void main(String []args){
fffff oo=new fffff();
oo.showName();
}
}学JAVA 学的不精 请各位大大给指点下
public class fffff {
String str1;
String str2;
fffff[] ff=new fffff[3];
List<fffff> li=new ArrayList<fffff>();
public fffff(){
this.setName();
}
public fffff(String str1,String str2){
this.str1=str1;
this.str2=str2;
}
public void setName(){
for(int i=0;i<3;i++){
ff[i]=new fffff("dd"+i,"ff"+i);
li.add(ff[i]);
}
}
public void showName(){
Iterator <fffff>it=li.iterator();
while(it.hasNext()){
Object ob= it.next();
System.out.println(ob);
}
}
public static void main(String []args){
fffff oo=new fffff();
oo.showName();
}
}学JAVA 学的不精 请各位大大给指点下
这里相当于调用System.out.println(ob.toString());所以按你的要求,你得重写toString方法,如
public String toString() {
return str1 + str2;
}
public String toString() {
return str1 + str2;
} 这个方法我写进去了
System.out.println(ob.toString());这里我也改了 可是还是输出的地址的啊
String str2;
fffff[] ff = new fffff[3];
List<fffff> li = new ArrayList<fffff>(); public fffff() {
this.setName();
} public fffff(String str1, String str2) { this.str1 = str1;
this.str2 = str2;
} public void setName() {
for (int i = 0; i < 3; i++) {
ff[i] = new fffff("dd" + i, "ff" + i);
li.add(ff[i]);
} } public void showName() {
Iterator<fffff> it = li.iterator();
while (it.hasNext()) {
Object ob = it.next();
System.out.println(ob);
}
} public String toString() {
return str1 + ", " + str2;
} public static void main(String[] args) {
fffff oo = new fffff();
oo.showName();
}
}
ff[0] = com.web.test.Test@1c78e57
ff[1] = com.web.test.Test@5224ee
ff[2] = com.web.test.Test@f6a746
就是下面的这句往里面写入的!!
<font color=red>
ff[i] = new fffff("dd" + i, "ff" + i);
</font>
要把改为 fffff ob=it.next();
最后就可以 System.out.println(ob.str1+ob.str2);
你存进的只是类地址;
然后你的showName方法写的一仅是返回他的对象地址
Iterator <fffff>it=li.iterator();
while(it.hasNext()){
Object ob= it.next();
System.out.println(ob.getName);
}
}