Given the code fragment:

Given code:
package com.udayan.oca;
public class Test {
public static void main(String[] args) {
/*INSERT*/
arr[1] = 5;
arr[2] = 10;
System.out.println("[" + arr[1] + ", " + arr[2] + "]"); //Line n1
}
}
And below statements:
1. short arr [] = new short[2];
2. byte [] arr = new byte[10];
3. short [] arr; arr = new short[3];
4. short [2] arr;
5. short [3] arr;
6. int [] arr = new int[]{100, 100};
7. int [] arr = new int[]{0, 0, 0, 0};
8. short [] arr = {};
9. short [] arr = new short[2]{5, 10};
How many above statements can be used to replace /*INSERT*/, such that on execution, code will print [5, 10] on to the console?
Given this code for a Planet object:

Consider below codes of 3 java files:
1. //Super.java
2. package com.sampleproject.oca;
3.
4. public interface Super {
5. String name = "SUPER"; //Line n1
6. }
1. //Sub.java
2. package com.sampleproject.oca;
3.
4. public interface Sub extends Super { //Line n2
5.
6. }
1. //Test.java
2. package com.sampleproject.oca;
3.
4. public class Test {
5. public static void main(String[] args) {
6. Sub sub = null;
7. System.out.println(sub.name); //Line n3
8. }
9.
Which of the following statements is correct?
What will be the result of compiling and executing Test class?
package com.udayan.oca;
public class Test {
public static void main(String[] args) {
String str1 = " ";
boolean b1 = str1.isEmpty();
System.out.println(b1);
str1.trim();
b1 = str1.isEmpty();
System.out.println(b1);
}
}
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