Casa
import java.io.*;
import java.lang.*;
public class NewClass1 {
public static void main (String [] args) {
int x=1,xi=0; int i, j, tmp;
int arreglo [] = new int [xi];
for (i=0; i<x;i++) {
arreglo [i] = (int) (Math.random () * 100 +1);
}
for (i=0; i<x; i++) {
System.out.print ("\t" + arreglo [i]);
}
for (i = 0; i <x-1; i ++) {
for (j = 0; j <i-1; j ++)
if(arreglo [j] <arreglo [j +1]) {
tmp = arreglo [j];
arreglo [j] = arreglo [j +1];
arreglo [j +1] = tmp;
}
}
System.out.println ();
for (i=0; i<x;i++) {
System.out.print ("\t" + arreglo [i]);
}System.out.println ();
for(i=x-1; i>=0; i--) {
System.out.print ("\t" + arreglo [i]);
Suma de matriz
import java.util.*;
public class MSuma {
public static void main (String args[]) {Random r1 = new Random();
Random r2 = new Random();
int n;
int matriz1[][] = new int[3][3];
int matriz2[][] = new int[3][3];
int matriz3[][] = new int[3][3];
for (int i=0; i<3; i++) {
for(int j=0; j<3; j++){
matriz1[i][j] = (int)(r1.nextInt(10)*1);
matriz2[i][j] = (int)(r2.nextInt(10)*1);
matriz3[i][j] = matriz1[i][j] + matriz2[i][j];
}
}
System.out.println ("Matriz 1"); for (int i=0; i<3; i++) {
for (int j=0; j<3; j++){
System.out.print (matriz1[i][i]+" ");
}
System.out.println();
}
System.out.println ("Matriz 2");
for (int i=0; i<3; i++) { for (int j=0; j<3; j++){
System.out.print (matriz2[i][i]+" ");
}
System.out.println();
}
System.out.println ("Matriz 3");
for (int i=0; i<3; i++) {
for (int j=0; j<3; j++){ System.out.print (matriz3[i][i]+" ");
}
System.out.println();
menu
import java.io.*;
import java.lang.*;
public class pn {
public static void menu() throws IOException{
tema2_metodos objeto= new tema2_metodos();
BufferedReader te = new BufferedReader(new InputStreamReader(System.in));
int opcion;
do{
System.out.println(" MENUcito ");
System.out.println(" 1.- PROMEDIO...
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