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How to initialize an array in Java?
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arrayinitializehowjava
Problem
I am initializing an array like this:
NetBeans points to an error at this line:
How can I solve the problem?
public class Array {
int data[] = new int[10];
/** Creates a new instance of Array */
public Array() {
data[10] = {10,20,30,40,50,60,71,80,90,91};
}
}NetBeans points to an error at this line:
data[10] = {10,20,30,40,50,60,71,80,90,91};How can I solve the problem?
Solution
data[10] = {10,20,30,40,50,60,71,80,90,91};The above is not correct (syntax error). It means you are assigning an array to
data[10] which can hold just an element.If you want to initialize an array, try using Array Initializer:
int[] data = {10,20,30,40,50,60,71,80,90,91};
// or
int[] data;
data = new int[] {10,20,30,40,50,60,71,80,90,91};Notice the difference between the two declarations. When assigning a new array to a declared variable,
new must be used.Even if you correct the syntax, accessing
data[10] is still incorrect (You can only access data[0] to data[9] because index of arrays in Java is 0-based). Accessing data[10] will throw an ArrayIndexOutOfBoundsException.Code Snippets
data[10] = {10,20,30,40,50,60,71,80,90,91};int[] data = {10,20,30,40,50,60,71,80,90,91};
// or
int[] data;
data = new int[] {10,20,30,40,50,60,71,80,90,91};Context
Stack Overflow Q#1938101, score: 736
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