Burbuja en java



import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Burbuja {

public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.println("ingrese numero de datos a ingresar: ");
int tam = Integer.parseInt(in.readLine());
int arr[] = new int[tam];
int j = 0;
for (int i = 0; i < arr.length; i++) {
j+=1;
System.out.println("Elemento "+j+":");
arr[i]=Integer.parseInt(in.readLine());
}
OrdenarBurbuja2(arr);
imprimir(arr);
}
public static void OrdenarBurbuja(int[] vector){
for (int i = 0; i < vector.length-1; i++) {
for (int j = 0; j < vector.length-1; j++) {
if(vector[j+1]<vector[j]){ //de menor a mayor
int tmp = vector[j+1];
vector[j+1]=vector[j];
vector[j]=tmp;
}
}
}
}
public static void OrdenarBurbuja2(int[] vector){
for (int i = 0; i < vector.length; i++) {
for (int j = i+1; j < vector.length; j++) {
if(vector[i]<vector[j]){
int aux = vector[i];
vector[i]=vector[j];
vector[j]=aux;
}
}
}
}
public static void imprimir(int[] vector){
for (int i = 0; i < vector.length-1; i++) {
System.out.print(vector[i]+" ");
}
System.out.println(vector[vector.length-1]);
}
public static void imprimir2(int[] vector){
for (int i = 0; i < vector.length; i++) {
if(i==(vector.length-1)){
System.out.println(vector[i]);
}else{
System.out.print(vector[i]+" ");
}
}
}
}