因此,对于家庭作业,我必须编写一个程序来创建一个名称链接列表,使其循环,然后删除每个第 n 个节点,直到其中只剩下一件事。我的代码打印出东西被取出但从未真正取出,有人能告诉我为什么吗?注意:因为这是家庭作业,我不是在寻找确切的答案,更多关于如何修复我的代码的有用建议
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class Survivor {
public static void main(String[] args){
ListNode list=makeNode();
ListNode t=list;
Scanner sc=new Scanner(System.in);
while(t.getNext()!=null){
System.out.print(t.getValue() + "; ");
t=t.getNext();
}
System.out.println();
System.out.print("Enter a number to kill: ");
int kill=sc.nextInt();
kill(kill,list);
t=list;
while(t.getNext()!=null){
System.out.print(t.getValue() + "; ");
t=t.getNext();
}
}
public static ListNode makeNode(){
ListNode names=null;
File data=new File("names.txt");
Scanner fl=null;
ListNode t=names;
try {
fl=new Scanner(data);
} catch (FileNotFoundException e) {
//handle errors
System.out.println("The File isnt there"+data.getAbsolutePath()+"\"");
System.exit(-1);
}
while(fl.hasNext()){
String theName=revName(fl.nextLine());
if(t!=null){
if(t.getNext()!=null){
ListNode t2=t.getNext();
if(theName.compareToIgnoreCase((String) names.getValue())<0){
names=(new ListNode(theName, names));
}
if(theName.compareToIgnoreCase((String) names.getValue())>0){
while(t.getNext() !=null &&theName.compareToIgnoreCase((String) t2.getValue())>0 ){
t=t.getNext();
t2=t2.getNext();
}
t.setNext(new ListNode((theName),t2));
}
}
if(t.getNext()==null){
if(theName.compareToIgnoreCase(((String)t.getValue()))<0){
names=(new ListNode((theName),null));
}
else{
t.setNext(new ListNode(theName,null));
}
}
t=names;
}
if(names==null){
names=new ListNode(theName,null);
t=names;
}
t=names;
}
return(names);
}
public static String getCauseOfDeath(String name){
int first=(int)(Math.random()*10);
String cause = "fell off of a cliff";
if(first==1)
cause="tripped";
if(first==2)
cause="got a boo-boo and died";
if(first==3)
cause="insulted the gods";
if(first==4)
cause="had a coconut fall on their head";
if(first==5)
cause="drowned";
if(first==6)
cause="showed up to cuadrados class late";
if(first==7)
cause="tried to steal honey from giant bees and failed";
if(first==8)
cause="doesn't even lift";
if(first==9)
cause= "got bitten by a unicorn and poisoned";
if(first==10)
cause="got lost and starved";
return("Alas, the mighty " + name+ " has fallen; " + name + " "+cause);
}
public static String revName(String name){
String name1;
String name2;
int space;
int dot;
dot=name.lastIndexOf(".");
if (dot == -1){
name= name.trim(); //Trims spaces at front and end
space=name.lastIndexOf(" ");
if (space == -1){
//If there are no spaces in the code this line just returns the name
return name;
}
else{
name1=name.substring(0, space);
name2=name.substring(space+1);
if(name2.length()>1){
return name2+ " " + name1;
}
else{
space=name.indexOf(" ");
name1=name.substring(0, space);
name2=name.substring(space+1);
return name2+" " + name1;
}
}
}
return (name);
}
public static void kill(int i, ListNode list){
ListNode t=list;
ListNode t2=t.getNext();
int z=2;
while(t2.getNext()!=null){
if(i==z){
System.out.println(getCauseOfDeath(revName((String) t2.getValue())));
t.setNext(t2.getNext());
z=0;
}
z++;
t=t.getNext();
t2=t2.getNext();
}
}
}