1.Create a class Trial with PSVM
create an array of names of length 5 ->
String[] names = new String[5];
get the values using scanner for this
Iterate through the array and print the name starting with r in uppercase
Create 2 classes Student, StudentMain
Student class has studentName,department as properties. Create a parameterised constructor and toString
In StudentMain add PSVM
create an array of Student(array of student objects)
Student[] students = new Student[2];
assign values as
student[0] = new Student("Ram", "ECE");
student[1] = new Student("Raju", "CSE");
Iterate this using foreach and print the student details;
Once done, modify the same with 5 student objects.
use for loop to get values for name and dept to assign to five different student objectsCreate a two dimensional array of size 3x3 with int values. use for loop to assign values
Iterate through the array to get the even numbers and calculate their sum(use foreach)Create a class Project with 2 methods
String[] toolsUsed(){
//return an array of tools like maven, git, JUnit
}
void printTopics(String[] topicName){
// iterate the array and print it
}
Create another class ProjectMain. create PSVM
create one object for Project class and call the methods separately and print . the topic name can be spring, java, react
package com.first;
public class Student {
String studentName;
String department;
public Student(String studentName, String department) {
super();
this.studentName = studentName;
this.department = department;
}
}
package com.first;
import java.util.Scanner;
public class StudentMain {
public static void main(String[] args) {
Student[] student=new Student[2];
student[0]=new Student("Ram","ECE");
student[1]=new Student("Raju","CSE");
for(Student students:student){
System.out.println(students.studentName+" "+students.department);
}
}
}
modified 2nd program for 5 students using scanner
package com.first;
public class Student {
String studentName;
String department;
public Student(String studentName, String department) {
super();
this.studentName = studentName;
this.department = department;
}
@Override
public String toString() {
return "Student [studentName=" + studentName + ", department=" + department+"]";
}
}
package com.first;
import java.util.Scanner;
public class StudentMain {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
Student[] student=new Student[5];
for (int i = 0; i < 5; i++) {
System.out.println("Enter Student Name");
String studentName=scanner.next();
System.out.println("Enter department");
String department=scanner.next();
student[i]=new Student(studentName,department);
}
for(Student students:student){
System.out.println(students);
}
}
}
package practise;
import java.util.Scanner;
public class TwoDArrayEvenSum {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int[][] matrix = new int[3][3];
System.out.println("Enter 9 integer values for 3x3 matrix:");
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
matrix[i][j] = sc.nextInt();
}
}
int evenSum = 0;
System.out.println("Even numbers in the matrix:");
for (int[] row : matrix) {
for (int num : row) {
if (num % 2 == 0) {
System.out.print(num + " ");
evenSum += num;
}
}
}
System.out.println("Sum of even numbers: " + evenSum);
sc.close();
}
}
package com.first;
public class Project {
public static String[] toolsUsed() {
return new String[] { "maven","git","Junit" };
}
void printTopics(String[] topicName) {
for(String topic:topicName){
System.out.println(topic);
}
}
}
package com.first;
public class ProjectMain {
public static void main(String[] args) {
System.out.println("Tools");
String[] tools = Project.toolsUsed();
for (String tool : tools) {
System.out.println(tool);
}
System.out.println();
System.out.println("Topics");
Project project=new Project();
String[] topics= {"Spring","Java","React"};
project.printTopics(topics);
}
}