ICICI LIIC YUCULIUIS IIUI JLI IUSQUIZ 1. String is a primitive datatype Optional Answers: 1. True, Strings are primitives since their close cousin, chars, are also primitive 2. False, String is a reference variable 3. False, String is a char variable 4. True, Strings hold primitives, therefore it is a primitive 2. "\t" is an escape key for Optional Answers: 1. next line 2. T-Layout 3. tab 4. null 3. double number = 5; double number2 = number; Which is true? Optional Answers: 1. There is a compilation error since only a String can be assigned to another String 2. They each contain a reference to a single location since they were assigned to each other 3. They reference the locations of 2 separate objects 4. They each contain separate values in separate locations each though they were assigned to each other 4. char c="my code does stuff".charAt(9); What is the value of c? Optional Answers: 1. null 2. d 3.0 4. Compiler error, charAt takes in only chars as parameters example: hello.charAt('h'); 5. int x="Hello world".length(); What is the value of x? (look up length() in the java api) Optional Answers: 1. Invalid, you cannot call methods this way 2. 11 3.9 4.8 6. String s="Nerf This!".substring(0,6); What is the value of s? Optional Answers: 1. Nerf 2. Nerf Th 3. Nerf T 4. Runtime Error - You cannot call methods like this