class jurnal1{
node head=null;
node tail=null;
void addfront(int b){
node baru = new node(b);
if(head==null){
head=baru;
tail=baru;
}else{
baru.next=head;
head.prev=head;
head=baru;
}
}
void addback(int b){
node baru = new node(b);
if(head==null){
head=baru;
tail=baru;
}else{
baru.prev=tail;
tail.next=baru;
tail=baru;
}
}
void dellfront(){
if(head==null){
System.out.println("List Kosong");
}else{
head=head.next;
head.prev=null;
}
}
void dellback(){
if(head==null){
System.out.println("List Kosong");
}else{
tail=tail.prev;;
tail.next=null;
}
}
void tampil(){
node tmp=head;
if(head==null){
System.out.println("List Kosong");
}else{
while(tmp !=null){
System.out.print(tmp.data +" ");
tmp=tmp.next;
}
}System.out.println();
}
void del(int b){
node tmp=head;
node after=tmp.next;
if(tmp.next != null){
while(tmp.next.data != b){
tmp=tmp.next;
after=after.next;
}
tmp.next=after.next;
after=null;
}
}
void urut(){
node tmp;
int t;
for(int i=0;i<7;i++){
tmp=head;
while(tmp.next!=null){
if(tmp.data>tmp.next.data){
t=tmp.data;
tmp.data=tmp.next.data;
tmp.next.data=t;}
tmp=tmp.next;}}
}
void addafter(int b,int a){
node tmp=head;
node baru = new node(b);
while(tmp.data != a){
tmp=tmp.next;
}
node bantu = tmp.next;
tmp.next=baru;
baru.next=bantu;
baru.prev=tmp;
bantu.prev=baru;
}
void dellall(){
head=null;
System.out.println("kosong");
}
public static void main (String [] args){
jurnal1 x= new jurnal1();
System.out.println("Orang-orang uji nyali");
x.addback(2);
x.addback(6);
x.addback(13);
x.addback(19);
x.addback(46);
x.addback(35);
x.addback(83);
x.tampil();
System.out.println("sisa Orang-orang uji nyali");
x.dellfront();
x.dellfront();
x.dellfront();
x.tampil();
System.out.println("sisa Orang-orang uji nyali");
x.del(46);
x.tampil();
System.out.println("sisa Orang-orang uji nyali");
x.addback(100);
x.tampil();
System.out.println("sisa Orang-orang uji nyali");
x.addafter(13,35);
x.tampil();
System.out.println("sisa Orang-orang uji nyali");
x.addfront(2);
x.tampil();
System.out.println("sisa Orang-orang uji nyali");
x.addafter(6,13);
x.tampil();
x.dellback();
x.addback(46);
System.out.println("sisa Orang-orang uji nyali");
x.tampil();
x.dellall();
x.addback(46);x.addback(6);x.addback(2);
x.addback(83);x.addback(35);x.addback(19);x.addback(13);
System.out.println("sisa Orang-orang uji nyali");
x.tampil();
System.out.println("sisa Orang-orang uji nyali");
x.urut();
x.tampil();
}
}