Hi all, I have a question and did not find anything in the internet, so i ask to you
how can i do for print a arralist of array in java??
[QUOTE=felesmiki;44623302]Hi all, I have a question and did not find anything in the internet, so i ask to you
how can i do for print a arralist of array in java??[/QUOTE]
Nested loops.
[code]
ArrayList<String> stringList = new ArrayList<String>();
stringList.add("element one");
stringList.add("element two");
for (String string : stringList)
System.out.println(string);
[/code]
[editline]23rd April 2014[/editline]
Use Google next time. This stuff is very basic.
[QUOTE=Contron;44623740][code]
ArrayList<String> stringList = new ArrayList<String>();
stringList.add("element one");
stringList.add("element two");
for (String string : stringList)
System.out.println(string);
[/code]
[editline]23rd April 2014[/editline]
Use Google next time. This stuff is very basic.[/QUOTE]
[code]public class supermercado {
public static void main (String arcs[]){
java.util.Scanner dato = new java.util.Scanner(System.in);
ArrayList listado = new ArrayList();
String datosprod[] = new String [3];
listado.add(datosprod);
boolean finproducto = true;
boolean productoinfo = true;
String productoentero = "";
int y = 0;
int x = 0;
while(finproducto){
String datos = dato.nextLine();
if(datos.length()>=14){
char valor1 = datos.charAt(x);
String valor2 = Character.toString(valor1);
if(!(valor2.equals(" "))){
productoentero = productoentero + valor2;
if(x==datos.length()-1){
productoinfo=false;
}
}else{
productoinfo=false;
}
if(!(productoinfo)){
datosprod[y]=productoentero;
productoentero = "";
productoinfo=true;
y++;
if(y==3){
listado.add(datosprod);
y=0;
}
}
x++;
if(x==datos.length()){
x=0;
}
}else{
listado.add(datos);
finproducto = false;
}
}
}
}[/code]
i used google for this, but did not find anything that works on me program ( And i see that this probably will be easy posting this before)
You really should use camelCase to make your identifiers more readable.
I can't read Spanish well, but if you marked word boundaries it would at least be easier to guess what it's supposed to do.
[QUOTE=felesmiki;44623769][code]public class supermercado {
public static void main (String arcs[]){
java.util.Scanner dato = new java.util.Scanner(System.in);
ArrayList listado = new ArrayList();
String datosprod[] = new String [3];
listado.add(datosprod);
boolean finproducto = true;
boolean productoinfo = true;
String productoentero = "";
int y = 0;
int x = 0;
while(finproducto){
String datos = dato.nextLine();
if(datos.length()>=14){
char valor1 = datos.charAt(x);
String valor2 = Character.toString(valor1);
if(!(valor2.equals(" "))){
productoentero = productoentero + valor2;
if(x==datos.length()-1){
productoinfo=false;
}
}else{
productoinfo=false;
}
if(!(productoinfo)){
datosprod[y]=productoentero;
productoentero = "";
productoinfo=true;
y++;
if(y==3){
listado.add(datosprod);
y=0;
}
}
x++;
if(x==datos.length()){
x=0;
}
}else{
listado.add(datos);
finproducto = false;
}
}
}
}[/code]
i used google for this, but did not find anything that works on me program ( And i see that this probably will be easy posting this before)[/QUOTE]
What on earth do beginner programmers have against spaces and line breaks?
[CODE]ArrayList<int[]> myArray = new ArrayList<int[]>();
//Fill your array here
for(int[] arrayToPrint: myArray){
for(int a: arrayToPrint){
System.out.print(a + "\t");
}
System.out.print("\n");
}[/CODE]
[QUOTE=Speedfalcon;44625431][CODE]ArrayList<int[]> myArray = new ArrayList<int[]>();
//Fill your array here
for(int[] arrayToPrint: myArray){
for(int a: arrayToPrint){
System.out.print(a + "\t");
}
System.out.print("\n");
}[/CODE][/QUOTE]
You know...there is this method...called println() ? :v:
Also looping through Arrays with "for(Type var : int[])" was just implemented a while ago, so make sure you have the latest Java Version :D
[QUOTE=johnnyaka;44625733]You know...there is this method...called println() ? :v:
Also looping through Arrays with "for(Type var : int[])" was just implemented a while ago, so make sure you have the latest Java Version :D[/QUOTE]
Foreach loops using the semicolon were introduced with Java 5 in 2004. I don't think he needs to worry.
[QUOTE=Contron;44625839]Foreach loops using the semicolon were introduced with Java 5 in 2004. I don't think he needs to worry.[/QUOTE]
Well, you don't know how many Sysadmins still use old Java-Versions
(( My school e.g still uses Java 4 and don't ask me why ))
[QUOTE=Perl;44625007]What on earth do beginner programmers have against spaces and line breaks?[/QUOTE]
I know what you mean, I help two of my friends at Uni with their programming stuff and they both have two very different styles.
One of them puts in a ton of line breaks and the other puts in a few but in weird places so the code is just in blocks that make no sense.
I die a little inside whenever I am watching over them.
Seeing any of these things makes me cry and wonder if the programmer has a broken spacebar:
[code]){
x<y
x=y
for(x;y;z)
}else{[/code]
[QUOTE=sambooo;44644748]Seeing any of these things makes me cry and wonder if the programmer has a broken spacebar:
[code]){
x<y
x=y
for(x;y;z)
}else{[/code][/QUOTE]
To be fair to OP, he isn't claiming to be some genius or expert programmer. Habits like proper formatting comes with time and experience.
[QUOTE=Hng;44652641]To be fair to OP, he isn't claiming to be some genius or expert programmer. Habits like proper formatting comes with time and experience.[/QUOTE]
or literally any IDE
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