This is a program for bubble sorting in java ,Why output is showing as compilation error?

Question

Suggest baby correction in program
public class Myprogram{
static void bubbleSorting(int arr){
for(i=0;i<arr.length-1;i++){
for(j=0;j<arr.length-1-i;j++){
int temp=arr[j];
arr[j]=arr[j+1];
arr[j+1]=temp;
}
}
}
void printArrays(int arr){
for(i=0;i<arraylength;++i){
System.out.println(arr[j]+ " ");
}
}
public static void main(String []args){
Myprogram obj=new Myprogram();
obj.bubbleSorting(arr);
int arr[]={54,65,5,78,65};
System.out.println("Sorted array list:");
obj.printArrays(arr);

}
}

Answer 1

yes, add int to loops (3x):
for(int i=0; ..
for(int j=0; ..

parameters to methods are type int[] arr :
void bubbleSorting(int[] arr){ //int arr
void printArrays(int[] arr){ //int arr

in main():
change order of lines,
you must declare arr before you use it
int arr[]={54,65,5,78,65}; //1 ok
obj.bubbleSorting(arr); //2 ok

in printArrays():
add dot to arr.length
and better is print instead println here
arr[j] change to arr[i]

for(i=0;i<arr.length;++i){ //arraylength
System.out.print(arr[i]+ " "); //println(arr[j]+ " ")

in bubbleSorting():
add if for compare
for(i=0 ..
for(j=0 ..
if (arr[j]>arr[j+1]) {
int temp ..
}

and delete static before method name (because you call it non-static way)
void bubbleSorting( ...