My two cents: if you want to check whether the values are identical at each index then it is probably easiest to use Arrays.equals()

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  2. public int [] a,b;

  4. void setup(){
  5.   
  6. a= new int[3];
  7. b=new int[3];
  8. a[0]= 0;
  9. a[1]= 1;
  10. a[2]= 2;
  11.  b[0]= 0;
  12. b[1]= 1;
  13. b[2]= 2;
  14.  
  15.  if (Arrays.equals(a,b)) println("match");  
  16. }