*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package latihan1;
/**
*
* @author oryza
*/
public class kalkulator extends javax.swing.JFrame {
/**
* Creates new form kalkulator
*/
public kalkulator() {
this.setUndecorated(true);
this.setLocationRelativeTo(null);
initComponents();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
private void initComponents() {
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
nilai1 = new javax.swing.JTextField();
jLabel3 = new javax.swing.JLabel();
nilai2 = new javax.swing.JTextField();
jLabel4 = new javax.swing.JLabel();
jumlah = new javax.swing.JLabel();
operator = new javax.swing.JComboBox();
hitung = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setText("HITUNG SEDERHANA");
// nama judul di atas
jLabel2.setText("Nilai 1 : ");
//untk mencari nilai 1
nilai1.setText("0");
// nilai 1 sama dengan 0
jLabel3.setText("Nilai 1 : ");
//mencari nilai 2
nilai2.setText("0");
// nilai 2 sama dengan 0
jLabel4.setText("Jumlah");
// untuk mencari jumlah di dari nilai 1 dan nilai 2
jumlah.setFont(new java.awt.Font("Dialog", 1, 14)); // NOI18N
jumlah.setForeground(new java.awt.Color(255, 0, 0));
jumlah.setText("0");
operator.setFont(new java.awt.Font("Dialog", 1, 14)); // NOI18N
operator.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "+", "-", "*", "/" }));
//mencari untuk gabungan perkalian,pembagian,pengurangan,penjumlahan
hitung.setText("Hitung");
//rumus untuk mencari hitung
hitung.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
hitungActionPerformed(evt);
}
});
jButton2.setText("Kosongkan");
//rumus mencari untuk di kosongkan atau untuk mereset
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
jButton3.setText("Keluar");
//rumus untuk keluar dari aplikasi tertentu
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(operator, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(0, 68, Short.MAX_VALUE)
.addComponent(jLabel1)
.addGap(0, 68, Short.MAX_VALUE))
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(nilai1))
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(nilai2))
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel4)
.addGap(18, 18, 18)
.addComponent(jumlah, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
.addContainerGap())
.addGroup(layout.createSequentialGroup()
.addComponent(hitung)
.addGap(18, 18, 18)
.addComponent(jButton2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jButton3)
.addGap(0, 0, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(21, 21, 21)
.addComponent(jLabel1)
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(nilai1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel3)
.addComponent(nilai2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel4)
.addComponent(jumlah, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(operator, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(hitung)
.addComponent(jButton2)
.addComponent(jButton3))
.addContainerGap(64, Short.MAX_VALUE))
);
pack();
}// </editor-fold>//GEN-END:initComponents
private void hitungActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_hitungActionPerformed
int n1=0,n2=0,j=0;
//untuk mencari nilai dari n1, n2, dan j
n1=Integer.valueOf(nilai1.getText());
n2=Integer.valueOf(nilai2.getText());
String op=operator.getSelectedItem().toString();
// jumlah.setText(operator.getSelectedItem().toString());
if(op=="+"){
// untuk mencari penjumlahan
j=n1+n2;
}else if(op=="-"){
// untuk mencari pengurangan
j=n1-n2;
}else if(op=="*") {
//untuk mencari perkalian
j=n1*n2;
}else{
j=n1/n2;
// untuk mencari pembagian
}
jumlah.setText(String.valueOf(j));
// TODO add your handling code here:
}
//GEN-LAST:event_hitungActionPerformed
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton3ActionPerformed
System.exit(WIDTH);
// TODO add your handling code here:
}//GEN-LAST:event_jButton3ActionPerformed
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
nilai1.setText("0");
nilai2.setText("0");
jumlah.setText("0");
operator.setSelectedIndex(0);
// TODO add your handling code here:
}//GEN-LAST:event_jButton2ActionPerformed
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Game.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Game.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Game.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Game.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Game().setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton hitung;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JLabel jumlah;
private javax.swing.JTextField nilai1;
private javax.swing.JTextField nilai2;
private javax.swing.JComboBox operator;
// End of variables declaration//GEN-END:variables
}
penjelasan kalkulator,
jLabel1.setText("HITUNG SEDERHANA"); //ini sama dengan judul di atas dengan nama HITUNG SEDERHANA
jLabel2.setText("Nilai 1 : "); // rumus yang di gunakan untuk mencari nilai 1
nilai1.setText("0"); // nilai 1 sama dengan 0
jLabel3.setText("Nilai 1 : "); // rumus yang di gunakan untuk mencari nilai 2
nilai2.setText("0"); // nilai 2 sama dengan 0
jLabel4.setText("Jumlah"); // mencari jumlah dari hasil nilai 1 dan nilai 2 atau hasil dari nilai 1 dan 2
operator.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "+", "-", "*", "/" })); // mencari atau gabungan dari penjumlahan,pengurangan,perkalian, dan perkalian.
hitung.setText("Hitung"); // untuk mencari rumus hitung
jButton2.setText("Kosongkan"); //untuk mengkosongkan hasil atau meresetkan hasil.
jButton3.setText("Keluar"); // untuk keluar dari aplikasi
n1=Integer.valueOf(nilai1.getText());
// nilai 1 dengan menggunakan tipe data integer
n2=Integer.valueOf(nilai2.getText());
// nilai 2 dengan menggunakan tipe data integer
String op=operator.getSelectedItem().toString();
//jumlah.setText(operator.getSelectedItem().toString());
if(op=="+")
// untuk mencari penjumlahan
j=n1+n2;
}else if(op=="-"){
// untuk mencari pengurangan
j=n1-n2;
}else if(op=="*") {
//untuk mencari perkalian
j=n1*n2;
}else{
j=n1/n2;
// untuk mencari pembagian
jumlah.setText(String.valueOf(j))// untuk menghasilkan dari nilai nilai yang di atas seperti penjumlahan,pengurangan, pembagian, perkalian.
