1. String [] var1;
2. var1 = new String[2];
3. var1[0] = "hello";
4. var1[1] = "bye";
5. println("var1: ");
6. println(var1);
7. String [] var2 = {"bye", "hello"};
8. var1 = var2;
9. println("var2: ");
10. println(var2);
     

1. String [] var = {"Hello", "Welcome", "Goodbye"};
   for(int i = 0; i < 3; i++)
     println(var[i]);

 

1. String [] var2;
   var2 = new String[] {"One", "Two", "Three"};
   for(int i = 0; i < 3; i++)
     println(var2[i]);
   

I believe the C-like shortcut form for Array's initialization of multiple elements w/o specifying its type
was a mean to make Java more attractive for C/C++ developers to join its folder in the beginning! 

There are more C-like features too, as using something like int a[] rather than int[] a!
Even a not so OOP best practice of direct access for the Array's field length
was an attempt to make a C/C++ to Java transition more familiar.

Back to the topic, that shortcut works only when its reference variable is being declared at the same time.
For reassignments however, its data-type must be specified as well.
This more complete syntax instantiation works in both cases!

// This shortcut form works only inside declarations:
String[] strs = {"hello", "bye"};
println(strs);
println();

// For reassignments, its data-type must be specified as well:
strs = new String[] {"welcome", "stay"}; // 
println(strs);
println();

// Full data-type specification can alternatively be used within declarations too:
float[] nums = new float[] {1e3, -THIRD_PI, atan(1)*4};
println(nums);

exit();