array comparison

[loverahul3]

hi,

i want to return true if previous value in an arry is >= current vallues and false if <=..
int d= scores[i+1]; this line is throwing the arrayindexoutof bonds error pls help.

Given an array of scores, return true if each score is equal or greater than the one before. The array will be length 2 or more.

scoresIncreasin g({1, 3, 4}) → true
scoresIncreasin g({1, 3, 2}) → false
scoresIncreasin g({1, 1, 4}) → true

public boolean scoresIncreasin g(int[] scores) {
int a= scores.length;
boolean b = false;
for (int i=0; i<=a;i++){
int c =scores[i];
int d= scores[i+1];
if (a>=2 && c<=d) b= true;
}
return b;
}

[rodeoval]

The code gives the arrayIndexOutOf Bounds error because inside the for loop you have used the following condition inside for loop.
for (int i=0; i<=a;i++).
Since array indexes are 0 based the last index of the array is always (length-1).(eg: if it is an array of length 2, then the last index is 1).Therefore normally the condition should be i<a .Also since you are comparing two consective values here, the condition should be i<(a--1), so that in the last step of the iteration scores[a-2]and scores[a-1] will be compared.

Also note that rather than checking whether the length of the array in each iteration you can check it prior to the loop.If the length>= 2 then you can go to the for loop.Otherwise do something else.This way there would be lesser amnt of processing to do.

[r035198x]

hi,

i want to return true if previous value in an arry is >= current vallues and false if <=..
int d= scores[i+1]; this line is throwing the arrayindexoutof bonds error pls help.

Given an array of scores, return true if each score is equal or greater than the one before. The array will be length 2 or more.

scoresIncreasin g({1, 3, 4}) → true
scoresIncreasin g({1, 3, 2}) → false
scoresIncreasin g({1, 1, 4}) → true

public boolean scoresIncreasin g(int[] scores) {
int a= scores.length;
boolean b = false;
for (int i=0; i<=a;i++){
int c =scores[i];
int d= scores[i+1];
if (a>=2 && c<=d) b= true;
}
return b;
}

Print out the values of i at every entry in the for loop so that you understand how the indexing works.

P.S This is a contradiction
"i want to return true if previous value in an arry is >= current vallues and false if <=.."