Exercise #1:
Write a program that declares a two-dimensional array named myFancyArray of the type double. Initialize the array to the following values:
23 14.12 17 85.99
6.06 13 1100 0
36.36 90.09 3.145 5.4
1. Create a function that will return the sum of column three. Output this result.
2. Create a function that finds the ceiling of each value in the array.
3. Create a function that will use a nested loop to display all the elements in the array to the screen.
Solution
in java
package s1;
class extra {
public static double sum(double a, double b, double c) {
return a + b + c;
}
public static void ceiling(double a[][]) {
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[a.length - 1].length; j++) {
System.out.print(Math.ceil(a[i][j]) + \"\\t\");
}
System.out.println(\"\");
}
}
public static void print(double a[][]) {
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[a.length - 1].length; j++) {
System.out.print(a[i][j] + \"\\t\");
}
System.out.println(\"\");
}
}
public static void main(String[] args) {
double[][] myFancyArray = {{23, 14.12, 17, 85.99}, {6.06, 13, 1100, 0}, {36.36, 90.09, 3.145, 5.4}};
System.out.println(\"Sum=\"+sum( myFancyArray[0][0],myFancyArray[1][1], myFancyArray[2][2]));
System.out.println(\"ceiling\");
ceiling(myFancyArray);
System.out.println(\"print\");
print(myFancyArray);
}
}
output
run:
Sum=39.145
ceiling
23.0Â Â 15.0Â Â 17.0Â Â 86.0
7.0Â Â 13.0Â Â 1100.0Â Â 0.0
37.0Â Â 91.0Â Â 4.0Â Â 6.0
print
23.0Â Â 14.12Â Â 17.0Â Â 85.99
6.06Â Â 13.0Â Â 1100.0Â Â 0.0
36.36Â Â 90.09Â Â 3.145Â Â 5.4
BUILD SUCCESSFUL (total time: 0 seconds)
.
Exercise #1- Write a program that declares a two-dimensional array nam.docx
1. Exercise #1:
Write a program that declares a two-dimensional array named myFancyArray of the type double.
Initialize the array to the following values:
23 14.12 17 85.99
6.06 13 1100 0
36.36 90.09 3.145 5.4
1. Create a function that will return the sum of column three. Output this result.
2. Create a function that finds the ceiling of each value in the array.
3. Create a function that will use a nested loop to display all the elements in the array to the
screen.
Solution
in java
package s1;
class extra {
public static double sum(double a, double b, double c) {
return a + b + c;
}
public static void ceiling(double a[][]) {
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[a.length - 1].length; j++) {
System.out.print(Math.ceil(a[i][j]) + "t");
}
System.out.println("");
}
}
2. public static void print(double a[][]) {
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[a.length - 1].length; j++) {
System.out.print(a[i][j] + "t");
}
System.out.println("");
}
}
public static void main(String[] args) {
double[][] myFancyArray = {{23, 14.12, 17, 85.99}, {6.06, 13, 1100, 0}, {36.36, 90.09, 3.145,
5.4}};
System.out.println("Sum="+sum( myFancyArray[0][0],myFancyArray[1][1],
myFancyArray[2][2]));
System.out.println("ceiling");
ceiling(myFancyArray);
System.out.println("print");
print(myFancyArray);
}
}
output
run:
Sum=39.145
ceiling
23.0Â Â 15.0Â Â 17.0Â Â 86.0
7.0Â Â 13.0Â Â 1100.0Â Â 0.0
37.0Â Â 91.0Â Â 4.0Â Â 6.0
print
23.0Â Â 14.12Â Â 17.0Â Â 85.99
6.06Â Â 13.0Â Â 1100.0Â Â 0.0
36.36Â Â 90.09Â Â 3.145Â Â 5.4
BUILD SUCCESSFUL (total time: 0 seconds)
![Exercise #1:
Write a program that declares a two-dimensional array named myFancyArray of the type double.
Initialize the array to the following values:
23 14.12 17 85.99
6.06 13 1100 0
36.36 90.09 3.145 5.4
1. Create a function that will return the sum of column three. Output this result.
2. Create a function that finds the ceiling of each value in the array.
3. Create a function that will use a nested loop to display all the elements in the array to the
screen.
Solution
in java
package s1;
class extra {
public static double sum(double a, double b, double c) {
return a + b + c;
}
public static void ceiling(double a[][]) {
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[a.length - 1].length; j++) {
System.out.print(Math.ceil(a[i][j]) + "t");
}
System.out.println("");
}
}](https://image.slidesharecdn.com/exercise1-writeaprogramthatdeclaresatwo-dimensionalarraynam-230131055409-11b8e59d/85/exercise-1-write-a-program-that-declares-a-twodimensional-array-namdocx-1-320.jpg)
![public static void print(double a[][]) {
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[a.length - 1].length; j++) {
System.out.print(a[i][j] + "t");
}
System.out.println("");
}
}
public static void main(String[] args) {
double[][] myFancyArray = {{23, 14.12, 17, 85.99}, {6.06, 13, 1100, 0}, {36.36, 90.09, 3.145,
5.4}};
System.out.println("Sum="+sum( myFancyArray[0][0],myFancyArray[1][1],
myFancyArray[2][2]));
System.out.println("ceiling");
ceiling(myFancyArray);
System.out.println("print");
print(myFancyArray);
}
}
output
run:
Sum=39.145
ceiling
23.0Â Â 15.0Â Â 17.0Â Â 86.0
7.0Â Â 13.0Â Â 1100.0Â Â 0.0
37.0Â Â 91.0Â Â 4.0Â Â 6.0
print
23.0Â Â 14.12Â Â 17.0Â Â 85.99
6.06Â Â 13.0Â Â 1100.0Â Â 0.0
36.36Â Â 90.09Â Â 3.145Â Â 5.4
BUILD SUCCESSFUL (total time: 0 seconds)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)