change newline to null then newline
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@ -12,7 +12,7 @@ public class Replace {
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public static void printArray(int[] a) {
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public static void printArray(int[] a) {
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if(a==null) {
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if(a==null) {
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System.out.println(); //Create a newline to make the format looks uniform
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System.out.println("null"); //Print the string null
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return; //If a is a null pointer, return immediately to prevent a NullPointerException
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return; //If a is a null pointer, return immediately to prevent a NullPointerException
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}
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}
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//NOTE: return; (a return statement without a return value) in a method with no return type will break out of the method.
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//NOTE: return; (a return statement without a return value) in a method with no return type will break out of the method.
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