int[] intArray; intArray = new int[4]; The following code declares an array that can store 5 items only starting from index 0 to 4. The following code declares an array that can store 4 items only starting from index 1 to 4. The following code declares an array that can store 4 items only starting from index 0 to 3. None of the above.
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Declare an integer array variable called "intArray". Show more…
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'Which of the following correctly declares an array? int arr; int arr[array size]; array{array size}; array arr[array size];'
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Which of the following correctly initializes an array arr to contain four elements each with value 0? $I$ int [] arr $=\{0,0,0,0\}$ II int [] arr $=$ new int [4] III int [] arr $=$ new int [4] for (int $i=0 ; \text { i }<\text { arr. length; } i++)$ $\operatorname{arr}[\mathrm{i}]=0$ (A) I only (B) III only (C) I and III only (D) II and III only (E) I, II, and III
Refer to the following code segment. You may assume that array arr 1 contains elements arr1 $[0], \operatorname{arr} 1[1], \ldots, \operatorname{arr} 1[\mathrm{N}-1],$ where $\mathrm{N}=\operatorname{arr} 1 .$ length. int count $=0$ for (int $i=0 ; \quad i < N ; \quad i++)$ if $(\operatorname{arr} 1[i] \quad !=0)$ { $\operatorname{arr} 1[\text { count }]=\operatorname{arr} 1[i]$ count++; 2 } int []$\text { arr } 2=\text { new int [count }]$ for (int $i=0 ; \text { i }< \text { count } ; \quad i++)$ $\operatorname{arr} 2[i]=\operatorname{arr} 1[i]$ If array arr 1 initially contains the elements 0,6,0,4,0,0,2 in this order, what will arr2 contain after execution of the code segment? (A) 6,4,2 (B) 0,0,0,0,6,4,2 (C) 6,4,2,4,0,0,2 (D) 0,6,0,4,0,0,2 (E) 6,4,2,0,0,0,0
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