Consider below code:
1. //Test.java
2. package com.udayan.oca;
3.
4. public class Test {
5. public static void main(String[] args) {
6. StringBuilder sb = new StringBuilder(100);
7. System.out.println(sb.length() + ":" + sb.toString().length());
8. }
9. }
What will be the result of compiling and executing Test class?
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 str = "Java Rocks!";
System.out.println(str.length() + " : " + str.charAt(10));
}
}
How many String objects are there in the HEAP memory, when control is at Line 9?
1. package com.udayan.oca;
2.
3. public class Test {
4. public static void main(String[] args) {
5. String s1 = new String("Java"); //Line 3
6. String s2 = "JaVa"; //Line 4
7. String s3 = "JaVa"; //Line 5
8. String s4 = "Java"; //Line 6
9. String s5 = "Java"; //Line 7
10.
11. int i = 1; //Line 9
12.
13. }
14. }
Given the code fragment:
Which of the following is not a valid array declaration?
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