/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
class NestedLoops {
public static void main (String [] args) {
int numRows = 4;
int numCols = 5;
int i,j;
char ch = 'A';
// Note: You'll need to declare more variables
/* Your solution goes here */
for ( i = 0; i < numRows; i++) { // Outer loop runs for numRows times
for ( j = 0; j < numCols; j++) { // Inner loop runs for numCols times
System.out.print(i+1);
System.out.print((char)(ch+j));
System.out.print(" ");
}
}
System.out.println("");
return;
}
}
Huh???????................
Answer:
"this" keyword representing the class object itself.
Explanation:
Object-oriented programming concept emphasizes on using blueprints representing the structure of a data collection type to continuously create an instance of that data structure. The instance of that object is called a class object. It is used in database management systems to populate the database.
Functions defined in the class objects are called methods and are used specifically by the class instance to modify the data content of the class object defined.
When a member of a class is referenced in the class, it can be accessed with the "this" keyword. At an instance of the class object, the variable holding the object should be called to get the class content because of the "this" keyword binding the instance of the object to the method.
Answer:
- def getData(a_dict, key_list):
- result = []
-
- for key in key_list:
- result.append(a_dict[key])
-
- return result
-
- result = getData( {"puffin": 5, "corgi": 2, "three": 3} , ["three", "corgi"])
- print(result)
Explanation:
Let's define a function <em>getData() </em>with two parameters,<em> a_dict </em>and <em>key_list</em> as required by the question (Line 1).
Since the function is to return a list of associated values of dictionaries, a new list,<em> result</em>, is declared and initialized with empty values (Line 2).
Next, use for-loop to traverse through every string in the input <em>key_list </em>(Line 4) and use the traversed key to address the value in the<em> a_dict </em>and add it to the <em>result</em> list (Line 5)
At last, return the <em>result </em>list as output (Line 7)
We can test the function using the test case from the question and we shall see the output as follows:
[3, 2]
