Data Structure Java

[Ariana Abrenica]

it only prints the last element when it should print the elements that were input.

import java.io.*;
public class Array{
public static void main(String [] args)throws IOException{
BufferedReader br = new BufferedReader(new InputStreamReader (System.in));
System.out.print("Enter Array Size:");
int Size = Integer.parseInt(br.readLine());
int [] array = new int [Size];
for (int z = 0; z <= Size-1; z++){
	System.out.print("Enter element:" + " ");
	int number = Integer.parseInt(br.readLine());
	array [z] = number;	
		}
	System.out.print(array[Size-1]);
	}
}

[Henry Wong]

Ariana Abrenica wrote:it only prints the last element when it should print the elements that were input.

import java.io.*;
public class Array{
public static void main(String [] args)throws IOException{
BufferedReader br = new BufferedReader(new InputStreamReader (System.in));
System.out.print("Enter Array Size:");
int Size = Integer.parseInt(br.readLine());
int [] array = new int [Size];
for (int z = 0; z <= Size-1; z++){
	System.out.print("Enter element:" + " ");
	int number = Integer.parseInt(br.readLine());
	array [z] = number;	
		}
	System.out.print(array[Size-1]);
	}
}

Hint: what is the code doing at line 13?

Henry

[Ariana Abrenica]

Henry Wong wrote:

Ariana Abrenica wrote:it only prints the last element when it should print the elements that were input.

import java.io.*;
public class Array{
public static void main(String [] args)throws IOException{
BufferedReader br = new BufferedReader(new InputStreamReader (System.in));
System.out.print("Enter Array Size:");
int Size = Integer.parseInt(br.readLine());
int [] array = new int [Size];
for (int z = 0; z <= Size-1; z++){
	System.out.print("Enter element:" + " ");
	int number = Integer.parseInt(br.readLine());
	array [z] = number;	
		}
	System.out.print(array[Size-1]);
	}
}

Hint: what is the code doing at line 13?

Henry

it prints the array but when I removed [Size-1] -1 I'm having outofboundsexception

[Henry Wong]

Ariana Abrenica wrote:it prints the array but when I removed [Size-1] -1 I'm having outofboundsexception

You might want to review arrays -- and how do they work.... what that line does is print the last element.

Henry

[Saurabh Pillai]

Ariana Abrenica wrote:it only prints the last element when it should print the elements that were input.

for (int z = 0; z <= Size-1; z++){
	System.out.print("Enter element:" + " ");
	int number = Integer.parseInt(br.readLine());
	array [z] = number;	
		}
	System.out.print(array[Size-1]);
	}
}

- You do realize that

System.out.print(array[Size-1]);

is outside of for loop. Indentation is crucial to quickly uncover this type of problems.

- Considering that please explain, what do YOU think this line should print? Replace size with some number for example, 5.

System.out.print(array[Size-1]);

[Campbell Ritchie]

Why have you got an array in that code in the first place?