pass by value in java (primitive and arrays) -

this question has answer here:

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• are arrays passed value or passed reference in java? [duplicate] 7 answers

suppose have following code:

public static void main(string[] args) {     int x = 5;     int [] array = new int[10];     swtich (x, array);     system.out.println("x = " + x);     system.out.println("y[0] = " + y[0]); }  public static void switch(int number , int[] array){     number = 10;     array[0] = 150; } 

why program prints 5 (doesn't change value) , prints number ordered in array[0] 150?

thanks.