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Declare and initialize an array in Java
Posted by @starbucks #java
Step 0: For primitive types:
int[] myIntArray = new int[3];
int[] myIntArray = {1, 2, 3};
int[] myIntArray = new int[]{1, 2, 3};
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Step 1: For classes, for example String, it's the same:
String[] myStringArray = new String[3];
String[] myStringArray = {"a", "b", "c"};
String[] myStringArray = new String[]{"a", "b", "c"};
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Step 2: The third way of initializing is useful when you declare the array first and then initialize it. The cast is necessary here.
String[] myStringArray;
myStringArray = new String[]{"a", "b", "c"};
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More details:
You can either use array declaration or array literal (but only when you declare and affect the variable right away, array literals cannot be used for re-assigning an array).