public class Ex1{
public static void main(String[] args) {
int numbers[];
numbers = new int[6];
numbers[0] = 30;
numbers[1] = 25;
numbers[2] = 20;
numbers[3] = 15;
numbers[4] = 5;
for(int x=0; x<5; x++)
{
System.out.println("Numbers " +(x+1) + " is " + numbers[x]) ;
}
}
} Numbers 1 is 30
Numbers 2 is 25
Numbers 3 is 20
Numbers 4 is 15
Numbers 5 is 5
public class Ex2{
public static void main(String[] args) {
int groups[];
groups = new int[10];
groups[0] = 30;
groups[1] = 25;
groups[2] = 20;
groups[3] = 15;
groups[4] = 5;
groups[5] = 23;
groups[6] = 48;
for(int a=0; a<7; a++)
{
System.out.println("Group " +(a+1)+ "=" + groups[a]);
}
}
} Group 1=30
Group 2=25
Group 3=20
Group 4=15
Group 5=5
Group 6=23
Group 7=48
public class Ex3 {
public static void main(String[] args) {
String names[];
names = new String[4];
names = new String[4];
names[0] = "John";
names[1] = "James";
names[2] = "Steve";
names[3] = "Hume";
for(int x=0; x<4; x++)
{
System.out.println(names[x]);
}
}
}
John
James
Steve
Hume
public class Ex4{
public static void main(String[] args) {
String names[] = {"John","James","Jap","Sam"};
for(int x=0; x<4; x++)
{
System.out.println(names[x]);
}
}
} public class Ex5{
public static void main(String[] args) {
int groups[] = {10,20,30,40,50,60,70,80,90,100};
for(int x=0; x<10; x++)
{
System.out.println(groups[x]);
}
}
} Output
10
20
30
40
50
60
70
80
90
100
public class Ex6{
public static void main(String[] args) {
String names[] = {"John","Jim","Peter","Anne","James"};
int ages[] ={15,20,23,21,28};
for(int x=0; x<5; x++)
{
System.out.println(names[x] + " is " + ages[x] + " Years Old" );
}
}
} Output
John is 15 Years Old
Jim is 20 Years Old
Peter is 23 Years Old
Anne is 21 Years Old
James is 28 Years Old
Example 1
public class Ex1{
public static void main(String[] args) {
String names[] = {"John","James"};
String courses[] = {"Java","Asp","Php","Python","NodeJS"};
int marks[][] = new int[2][5];
marks[0][0]=75;
marks[0][1]=78;
marks[0][2]=75;
marks[0][3]=95;
marks[0][4]=97;
marks[1][0]=85;
marks[1][1]=88;
marks[1][2]=75;
marks[1][3]=65;
marks[1][4]=88;
System.out.println("John");
for(int row=0; row<1; row++)
for(int col=0; col<5; col++)
System.out.println(courses[col]+ "=" + marks[row][col]);
System.out.println("_________________________________");
System.out.println("James");
for(int row=1; row<2; row++)
for(int col=0; col<5; col++)
System.out.println(courses[col]+ "=" + marks[row][col]);
} Output
John
Java=75
Asp=78
Php=75
Python=95
NodeJS=97
_________________________________
James
Java=85
Asp=88
Php=75
Python=65
NodeJS=88
Example 2
public class Ex2{
public static void main(String[] args) {
String names[] = {"John","James"};
String courses[] = {"Java","Asp","Php","Python","NodeJS"};
int marks[][] = {{75,78,75,95,97},{85,88,75,65,88}};
System.out.println("John");
for(int row=0; row<1; row++)
for(int col=0; col<5; col++)
System.out.println(courses[col]+ "=" + marks[row][col] );
System.out.println("_________________________");
System.out.println("James");
for(int row=1;row<2;row++)
for(int col=0; col<5; col++)
System.out.println(courses[col]+ "=" + marks[row][col]);
}
} Example 3
public class Ex3{
public static void main(String[] args) {
int students[]={10,20,30,40};
System.out.println("Number of classes= " +students.length);
}
} Example 4
public class Ex4{
public static void main(String[] args) {
String exams[] = {"Anne","Peter"};
String courses[]={"Java","Asp","Php","Python","NodeJS"};
int marks[][]={{75,85,95,65,55},{55,65,85,75,90}};
System.out.println("Anne");
for(int row=0; row<1; row++)
for(int col=0; col<1; col++)
System.out.println(courses[col]+ " =" + marks[row][col]);
System.out.println("-----------------------------------");
System.out.println("Peter");
for(int row=1; row<2; row++)
for(int col=0; col<5; col++)
System.out.println(courses[col]+ " =" + marks[row][col]);
System.out.println("Number of Subject " + marks[0].length);
System.out.println("Number of Names " + marks.length);
}
} Output
Anne
Java =75
———————————–
Peter
Java =55
Asp =65
Php =85
Python =75
NodeJS =90
Number of Subject 5
Number of Names 2
Example 5
public class Ex5{
public static void main(String[] args)
{
String courses[] = {"Java","Asp","Php","Python","NodeJS"};
String Student[] = {"John","James","Peter","James","Sam","Steve","Jok","Jack"};
int Marks[][] ={{75,78,75,95,97},{85,88,75,65,88},{45,68,75,65,58},
{55,58,75,85,38}, {95,88,95,90,45},{75,68,45,75,28},{95,78,85,95,88},
{75,68,45,65,88}};
System.out.println("Number of Students = " + Marks.length);
System.out.println("Number of Courses = " + Marks[0].length);
}
} Output
Number of Students = 8
Number of Courses = 5
import java.util.*;
class Example{
public static void main(String args[]){
Scanner input = new Scanner(System.in);
int[] number = new int[5];
for(int i = 0 ; i < 5 ; i++){
System.out.print("Enter Number " + (i + 1) + " : ");
number[i] = input.nextInt();
}
System.out.println();
System.out.print("All Numbers : [ ");
for(int i = 0 ; i < number.length ; i++){
System.out.print(number[i] + " ");
}
System.out.println("]");
}
}
Output
Enter Number 1 : 56
Enter Number 2 : 78
Enter Number 3 : 45
Enter Number 4 : 67
Enter Number 5 : 89
All Numbers : [ 56 78 45 67 89 ]
import java.util.*;
class Example{
public static void main(String args[]){
Scanner input = new Scanner(System.in);
while(true){
System.out.print("Do you want to add new Student.? (Y/N) : ");
String letter = input.next();
System.out.println();
switch(letter){
case "Y":
System.out.print("Enter Student Name : ");
String name = input.next();
System.out.print("Enter Student Address : ");
String address = input.next();
System.out.print("Enter Number of Subjects : ");
int number_of_subjects = input.nextInt();
System.out.println();
int[] marks = new int[number_of_subjects];
int max = 0;
int total = 0;
for(int i = 0 ; i < number_of_subjects ;){
System.out.print("Enter Subject " + (i + 1) + " Marks : ");
marks[i] = input.nextInt();
if(marks[i] > 100){
System.out.println("Marks is Grater than 100.");
System.out.println();
continue;
}
if(max < marks[i]){
max = marks[i];
}
total = total + marks[i];
i++;
}
boolean flag = true;
while(flag){
System.out.println();
System.out.println("A. Show Student Details.");
System.out.println("B. Show All Marks.");
System.out.println("C. Show Maximum Marks.");
System.out.println("D. Show Total,Average & Result.");
System.out.println("X. Exit.");
System.out.println();
System.out.print("Please select one option : ");
letter = input.next();
System.out.println();
switch(letter){
case "A":
System.out.println("Student Name : " + name);
System.out.println("Student Address : " + address);
break;
case "B":
for(int i = 0 ; i < marks.length ; i++){
System.out.println("Subject " + (i + 1) + " Marks : " + marks[i]);
}
break;
case "C":
System.out.println("Maximum marks : " + max);
break;
case "D":
double average = (double)total / number_of_subjects;
String result = "pass";
if(average < 50){
result = "Fail";
}
System.out.println("Total : " + total);
System.out.println("Average : " + average);
System.out.println("Result : " + result);
break;
case "X":
System.out.println("Have a nice day..!");
flag = false;
break;
default :
System.out.println("Please select valid option..");
}
}
break;
case "N":
System.out.println("Good bye....");
return;
default :
System.out.println("Please enter valid letter..");
}
System.out.println();
}
}
}
Output
Do you want to add new Student.? (Y/N) : Y
Enter Student Name : John
Enter Student Address : India
Enter Number of Subjects : 3
Enter Subject 1 Marks : 78
Enter Subject 2 Marks : 89
Enter Subject 3 Marks : 54
A. Show Student Details.
B. Show All Marks.
C. Show Maximum Marks.
D. Show Total,Average & Result.
X. Exit.
Please select one option : A
Student Name : John
Student Address : India
A. Show Student Details.
B. Show All Marks.
C. Show Maximum Marks.
D. Show Total,Average & Result.
X. Exit.
Please select one option : A
Have you ever wanted to talk to a friendly, smart robot that helps you with…
DeepSeek AI is becoming a friendly and powerful new tool in the world of artificial…
Do you want to become an expert in Spring Boot CRUD operations? This comprehensive tutorial…
Modern websites must have a navigation bar that is clear and responsive. FlexBox CSS is…
Introduction In this section, we will guide you step by step in the development of an image upload registration system in Java using MySQL and JDBC. In the application, users register…
The Touchable Shop POS (Point of Sale) system is a sophisticated software solution developed using…