Arrays

Please select 1 option.

• for(String[] row : table){
      System.out.print(row[row.length]);
  }

• int i = 0;     
  for(String[] col : table){
      i++;
      if(i==col.length){
          System.out.print(table[col.length][i]);
      }
  }

• for(var row : table){
      System.out.print(row[row.length-1]);
  }

• for(int i=0; i<table.length-1; i++){
      int j = table[i].length-1;
      System.out.print(table[i][j]);
  }

Please select 1 option.

• The code will print i = 1 iArr[0] = 1

• The code will print i = 1 iArr[0] = 2

• The code will print i = 2 iArr[0] = 1

• The code will print i = 2 iArr[0] = 2

• The code will not compile.

Please select 1 option.

• 111

• 222

• It will not compile as bA[0] is uninitialized.

• It will throw an exception at runtime.

• None of the above.

Which of the following is/are valid instantiations and initializations of a multi dimensional array?. Please select 2 options.

• var array2D =  { { 0, 1, 2, 4}, {5, 6}}

• int[][][] array3D = {{0, 1}, {2, 3}, {4, 5}};

• int[] array2D[] = new int [2] [2];
  array2D[0] [0] = 1;
  array2D[0] [1] = 2;
  array2D[1] [0] = 3;

• int[][] array2D = new int[][]{0, 1};

• int[] arr = {1, 2};
  int[][] arr2 = {arr, {1, 2}, arr};
  int[][][] arr3 = {arr2};

Please select 1 option.

• It will throw an ArrayIndexOutOfBoundsException at Runtime.

• It will throw a NullPointerException at Runtime.

• It will compile and run without throwing any exceptions

• It will compile and throw a NullPointerException at runtime if var ia[][] = { {1, 2}, null }; is replaced with var ia = new int[][]{ {1, 2}, null };.

• It will compile and throw a NullPointerException at runtime if var ia[][] = { {1, 2}, null }; is replaced with var ia[][] = new int[][]{ {1, 2}, null };.

Please select 1 option.

• It will throw NullPointerBoundsException.

• It will throw ArrayIndexOutOfBoundsException.

• It will print null.

• It will run without any error but will print nothing.

• None of the above.

Please select 1 option.

• The program will fail to compile, because of uninitialized variable 'bool'.

• The program will throw a java.lang.NullPointerException when run.

• The program will print "0 null false".

• The program will print "0 null true".

• The program will print null and false but will print junk value for ia[0].

Which of the following option(s) correctly declare(s) a variable that can directly reference an array of 10 ints?. Please select 2 options.

• int[ ] iA

• int[10] iA

• int iA[ ]

• Object[ ] iA

• Object[10] iA

Which of these array declarations and instantiations are legal? . Please select 4 options.

• int[ ] a[ ] = new int [5][4] ;

• int a[ ][ ] = new int [5][4] ;

• int a[ ][ ] = new int [ ][4] ;

• int[ ] a[ ] = new int[4][ ] ;

• int[ ][ ] a = new int[5][4] ;