programming_tasks/functionInjava.java at master · Meiirzhan00/programming_tasks · GitHub

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packagecom.petehouston.tutorial.java;
importjava.util.Arrays;
importjava.util.Scanner;
importjava.lang.Math;
importjava.lang.String;
importjava.util.Random;


publicclassHelloWorld {

publicstaticvoidmain(String[] args) {

Randomrand = newRandom();
int[][] nums = newint[3][3];

for (inti=0; i< nums.length; i++){
for (intj=0; j<nums[i].length; j++) {
intrandNumber = rand.nextInt(50);
intmathRand = 10 +(int) (Math.random()*40);
nums[i][j] = mathRand;
 };
 }

for (intj=0; j<nums.length; j++){
for (inti=0; i<nums[j].length; i++){
System.out.printf("%d ",nums[j][i]);
 }
System.out.println();
 }

int[][] matrix = {
 {1,2,3},
 {7,9,0}
 };

System.out.println(Arrays.toString(matrix[0]));

String[][] strings = newString[2][3];
strings[0][1] = "Hello";
System.out.println(strings[0][1]);
hello();
welcome();
inta = 7, b = 8;
intc = sum(a,b);
System.out.println(c);

multip("Meiirzhan",1,2,5,7);

Scannerscan = newScanner(System.in);
System.out.print("\nEnter hour = ");
inth = scan.nextInt();
Stringres = dateTime(h);
System.out.println(res);


 }

staticvoidhello(){
System.out.println("Hello Java");
 }

staticvoidwelcome(){
System.out.println("Welcome to Java 17.0.1");
 }

staticintsum(intx, inty){
intz = x + y;
returnz;
// System.out.printf("Sum %d + %d = %d",x,y,z);
 }

staticvoidmultip(Strings, int ...j){
intresult = 1;
for(inti: j){
result *= i;
 }
System.out.printf("\n%s , result = %d",s,result);
 }

staticStringdateTime(inthour){
if (hour > 24 || hour<0) return"Invalid data";
elseif (hour > 24 || hour < 6) return"Good night";
elseif (hour >= 15) return"Good evening";
elseif (hour >= 11) return"Good afternoon";
elsereturn"Good morning";
 }

}