TUGAS JAVA 1

 import java.awt.*;
import javax.swing.*;
class MacamLayout extends JFrame{
JButton N0,B1, B2, B3, B4,B5, B6, B7, B8, B9, B10, B11 ;
JLabel lNama,lNama2,lNama3;
JPanel P1,P2,P3;
public MacamLayout() {
setTitle("MULTI LAYOUT");
JLabel lNama= new JLabel("Flow Layout" );
JButton B0=new JButton ("0");
JButton B1=new JButton ("1");
JButton B2=new JButton ("2");
JButton B3=new JButton ("3");
JLabel lNama2= new JLabel("None Layout" );
JButton B4=new JButton ("4");
JButton B5=new JButton ("5");
JButton B6=new JButton ("6");
JButton B7=new JButton ("7");
JLabel lNama3= new JLabel("Grid Layout" );
JButton B8=new JButton ("8");
JButton B9=new JButton ("9");
JButton B10=new JButton ("10");
JButton B11=new JButton ("11");
P1 = new JPanel();
P2 = new JPanel();
P3 = new JPanel();
setLayout(null);
add(lNama);
add(lNama2);
add(lNama3);
add(P1);
add(P2);
add(P3);
lNama.setBounds(15,10,100,20);
lNama2.setBounds(220,10,100,20);
lNama3.setBounds(320,10,100,20);
P1.setBounds(5,30,200,40);
P2.setBounds(215,30,200,100);
P3.setBounds(320,30,200,150);
P1.setLayout(new FlowLayout());
P1.add(B0);
P1.add(B1);
P1.add(B2);
P1.add(B3);
P2.setLayout(null);
P2.add(B4);
P2.add(B5);
P2.add(B6);
P2.add(B7);
B4.setBounds(5,10,70,20);
B5.setBounds(5,30,70,20);
B6.setBounds(5,50,70,20);
B7.setBounds(5,70,70,20);
P3.setLayout(new GridLayout(2,2));
P3.add(B8);
P3.add(B9);
P3.add(B10);
P3.add(B11);
P3.setSize(100,100);
setSize(450,180);
setVisible(true);
setDefaultCloseOperation(3);
}
}
    public class TUGAS2 {
    public static void main(String[] args) {
    MacamLayout l= new MacamLayout();
    }
}

Java GUI

import java.awt.*;
public class cthawt1 {
public static void main(String[] args) {
Frame myFrame = new Frame("contoh program awt");
Label myLabel = new Label("selamat belajar java");
myFrame.add(myLabel);
myFrame.setSize(200,150);
myFrame.show();
}
}

import java.awt.*;
class frameturunan extends Frame {
Label myLabel = new Label ("selamat belajar java");
public frameturunan(String judul) {
setTitle(judul);
setSize(200,200);
add(myLabel);
show();
}
}

public class cthawt2 {
public static void main(String[] args) {
frameturunan f = new frameturunan("Ini Frame Turunan");
}
}

 


import javax.swing.*;
public class cthswing1 {
public static void main(String[] args) {
JFrame myFrame = new JFrame("contoh program swing");
JLabel myLabel = new JLabel("selamat belajar java");
myFrame.add(myLabel);
myFrame.setSize(200,150);
myFrame.setVisible(true);
myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}



import javax.swing.*;
class frameturunan extends JFrame {
JLabel myLabel = new JLabel("selamat belajar java");
public frameturunan(String judul) {
setTitle(judul);setSize(200,200);
add(myLabel);
setVisible(true);
}
}

public class cthswing2 {
public static void main(String[] args) {
frameturunan f = new frameturunan("ini Frame Turunan");
}
}

MEET 6

public class mainmakhlukhidup{
public static void main (String [] args){
makhlukhidup.manusia m = new makhlukhidup.manusia("Alam");
System.out.println ("nama:"+m.nama);
makhlukhidup.tumbuhan t = new makhlukhidup.tumbuhan("Palem");
System.out.println("nama:"+t.nama);
System.out.println ("Semua burung pasti bisa terbang?"+makhlukhidup.hewan.burung.bisaTerbang);
makhlukhidup.hewan.burung b = new makhlukhidup.hewan.burung("Beo");
}
}

 

import makhlukhidup.*;

import makhlukhidup.hewan.*;
public class mainmakhlukhiduppakeimport {
public static void main (String [] args){
manusia m = new manusia("Alam");
System.out.println ("nama:"+m.nama);tumbuhan t = new tumbuhan("Palem");
System.out.println("nama:"+t.nama);
System.out.println ("Semua burung pasti bisa terbang?"+burung.bisaTerbang);
burung b = new makhlukhidup.hewan.burung("Beo");
}
}

package makhlukhidup;
public class manusia {
public String nama = "";
public manusia (String nama){
this.nama = nama;
}
}

package makhlukhidup;
public class tumbuhan {
public String nama = "";
public tumbuhan (String nama){
this.nama = nama;
}
}

package makhlukhidup.hewan;
public class burung {
public static final boolean bisaTerbang=true;
public String nama = "";
public burung(String nama){
this.nama = nama;
System.out.println("nama burung:"+nama);
}
}

public class ContohString {
    public static void main (String [] args) {
        String kalimat="Selamat belajar JAVA";
        System.out.println("toUpperCase : "+kalimat.toUpperCase());
        System.out.println("toLowerCase: "+kalimat.toLowerCase());
        System.out.println("Jumlah karakter :"+kalimat.length());
        System.out.println("KarakterIndex Ke 0 : "+kalimat.charAt(0));
        System.out.println("Substring(16,20) : "+kalimat.substring(16,20));
        System.out.println("Karakter Index ke 0 : "+kalimat.trim());
        }
        }

public class OpMatematika {
    public static void main (String[]args) {
    System.out.println ("E                =" +Math.E);
    System.out.println ("PI                =" +Math.PI);
    System.out.println ("Ln 20            ="         +Math.log(20.0));
    System.out.println ("ceil(-5.6)        ="         +Math.ceil(-5.6));
    System.out.println ("floor(-5.6)    ="         +Math.floor(-5.6));
    System.out.println ("round(-5.6)    ="         +Math.round(-5.6));
    System.out.println ("sqrt(25)        ="         +Math.sqrt(25));
    System.out.println ("pow(25,0.5)    ="         +Math.pow(25,0.5));
    }
}