The document contains code for 3 Java programs: 1) A Fibonacci sequence program that calculates and prints the Fibonacci sequence up to the 15th number. 2) A prime number program that prints all prime numbers between 1 and 100. 3) A 3x3 matrix addition program that takes input for 2 matrices, adds them together, and prints the result.

1. Listing Program
Fibonacci
/*
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* and open the template in the editor.
*/
package fibo;
/**
*
* @author agatha
*/
public class Fibo {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
int fibo[] = new int[15];
fibo[0] = 1;
fibo[1] = 1;
for (int i = 2; i < fibo.length; i++) {
fibo[i] = fibo[i - 1] + fibo[i - 2];
}
for (int i = 0; i < fibo.length; i++) {
System.out.println(fibo[i]);
}
}
}

2. Bilangan Prima 1-100
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package bil_prima;
/**
*
* @author agatha
*/
public class Bil_prima {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
char tanda[] = new char[101];
for (int i = 2; i <= 100; i++) {
if (tanda[i] != '*') {
System.out.print(i + " ");
for (int j = i * 2; j <= 100; j += i) {
tanda[j] = '*';
}
}
}
}
}

3. Matrik 3x3 Penjumlahan
/*
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* and open the template in the editor.
*/
package matrik3x3;
import java.util.Scanner;
/**
*
* @author agatha
*/
public class Matrik3x3 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
Scanner input = new Scanner(System.in);
int i;
int j;
int matrikA[][] = new int[4][4];
int matrikB[][] = new int[4][4];
int jumlah[][] = new int[4][4];
for (i = 1; i < 4; i++) {
for (j = 1; j < 4; j++) {
System.out.print("Matrik A " + i + "." + j + "= ");
matrikA[i][j] = input.nextInt();
}
}
System.out.println();
for (i = 1; i < 4; i++) {
for (j = 1; j < 4; j++) {
System.out.print("Matrik B " + i + "." + j + "= ");
matrikB[i][j] = input.nextInt();
}
}
for (i = 1; i < 4; i++) {
for (j = 1; j < 4; j++) {
jumlah[i][j] = matrikA[i][j] + matrikB[i][j];
}
}
System.out.println("n Matrik A n");
for (i = 1; i < 4; i++) {
for (j = 1; j < 4; j++) {
System.out.print(" " + matrikA[i][j]);
}
System.out.println();
}

4. System.out.println("nMatrik Bn");
for (i = 1; i < 4; i++) {
for (j = 1; j < 4; j++) {
System.out.print(" " + matrikB[i][j]);
}
System.out.println();
}
System.out.println("nMatrik A + Matrik Bn");
for (i = 1; i < 4; i++) {
for (j = 1; j < 4; j++) {
System.out.print(" " + jumlah[i][j]);
}
System.out.println();
}
}
}

5. Screenshot Program :
1. Fibonacci
2. Bilangan Prima 1-100
3. Matrik 3x3