Find and correct the error(s) in each of the following code fragments :

Question

1. The following code should create an integer array and increment all the array elements by 1:

int[] a = new int[5]; for( int i=0; i <= a.length; i++ ) ++a;

2. The following code should compare two integers to determine if they are not equal:

int x = 9, int y = 3; System.out.print( "x != y " + x != y );

Answer 1

class Junk

{

public static void main(String args[])

{

// Problem #1

int a[] = new int[5];

for (int i=0; i<a.length; i++)

{

++a[i];

}

for (int i=0; i<a.length; i++)

{

System.out.println(a[i]);

}

// Problem #2

int x=9;

int y=3;

System.out.println(" x!=y " + (x!=y));

String outbuff = ( x!=y) ? "They are not equal" : "They are equal";

System.out.println(outbuff);

}

}

Answer 2

class Junk

{

public static void main(String args[])

{

// Problem #1

int a[] = new int[5];

for (int i=0; i<a.length; i++)

{

++a[i];

}

for (int i=0; i<a.length; i++)

{

System.out.println(a[i]);

}

// Problem #2

int x=9;

int y=3;

System.out.println(" x!=y " + (x!=y));

String outbuff = ( x!=y) ? "They are not equal" : "They are equal";

System.out.println(outbuff);

}

}