tugas untuk uts

1. membuat kakkulator



berikut hasil run nya

 

hasil run untuk menyimpan

 package algoritma;

/**
 *
 * @author zaka
 */
public class kalkulator extends javax.swing.JFrame {
String angka;
Double Hasil,angka1,angka2;
int operator;
    /** Creates new form kalkulator */
    public kalkulator() {
        initComponents();
        angka="";
    }

berikut source code untuk nomeric:

private void layarActionPerformed(java.awt.event.ActionEvent evt) {                                     
// TODO add your handling code here:
   
    layar.setText("");
}                                    

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                        
// TODO add your handling code here:
    angka+="1";
   layar.setText(angka);
}                                       

private void jButton18ActionPerformed(java.awt.event.ActionEvent evt) {                                         
// TODO add your handling code here: angka+="1";
  angka+="2";
   layar.setText(angka);
   
}                                        

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {                                        
// TODO add your handling code here:
    angka+="3";
   layar.setText(angka);
}                                       

private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {                                        
// TODO add your handling code here:
    angka+="4";
   layar.setText(angka);
}                                       

private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {                                        
// TODO add your handling code here:
    angka+="5";
   layar.setText(angka);
}                                       

private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) {                                        
// TODO add your handling code here:
    angka+="6";
   layar.setText(angka);
}                                       

private void jButton7ActionPerformed(java.awt.event.ActionEvent evt) {                                        
// TODO add your handling code here:
    angka+="7";
   layar.setText(angka);
}                                       

private void jButton8ActionPerformed(java.awt.event.ActionEvent evt) {                                        
// TODO add your handling code here:
    angka+="8";
   layar.setText(angka);
}                                       

private void jButton9ActionPerformed(java.awt.event.ActionEvent evt) {                                        
// TODO add your handling code here:
    angka+="9";
   layar.setText(angka);
}                                       

private void jButton10ActionPerformed(java.awt.event.ActionEvent evt) {                                         
// TODO add your handling code here:
    angka+="0";
   layar.setText(angka);
}                                        

private void kaliActionPerformed(java.awt.event.ActionEvent evt) {                                    
// TODO add your handling code here:
    angka1=Double.parseDouble(angka);
    layar.setText("x");
    angka="";
    operator=1;
}                                   

private void bagiActionPerformed(java.awt.event.ActionEvent evt) {                                    
// TODO add your handling code here:
    angka1=Double.parseDouble(angka);
    layar.setText("/");
    angka="";
    operator=2;
}                                   

private void tambahActionPerformed(java.awt.event.ActionEvent evt) {                                      
// TODO add your handling code here:
    angka1=Double.parseDouble(angka);
    layar.setText("+");
    angka="";
    operator=3;
}                                     

private void kurangActionPerformed(java.awt.event.ActionEvent evt) {                                      
// TODO add your handling code here:
    angka1=Double.parseDouble(angka);
    layar.setText("-");
    angka="";
    operator=4;
}                                     

private void samadenganActionPerformed(java.awt.event.ActionEvent evt) {                                          
// TODO add your handling code here:
 switch (operator){
case 1:
angka2 = Double.parseDouble(angka);
Hasil = angka1 * angka2;
angka=Double.toString(Hasil);
layar.setText(angka);
break;
  case 2:
angka2 = Double.parseDouble(angka);
Hasil = angka1 / angka2;
angka=Double.toString(Hasil);
layar.setText(angka);
break;

case 3:
angka2 = Double.parseDouble(angka);
Hasil = angka1 + angka2;
angka=Double.toString(Hasil);
layar.setText(angka);
break;

case 4:
angka2 = Double.parseDouble(angka);
Hasil = angka1 - angka2;
angka=Double.toString(Hasil);
layar.setText(angka);
break;

default:
break;
}  
}                                         

private void komaActionPerformed(java.awt.event.ActionEvent evt) {                                     
// TODO add your handling code here:
    angka1=Double.parseDouble(angka);
    layar.setText(".");
    angka="";
    operator=5;
}                                    

private void clearActionPerformed(java.awt.event.ActionEvent evt) {                                     
// TODO add your handling code here:
    layar.setText("");
angka1=0.0;
angka2=0.0;
Hasil=0.0;
angka="";

}                                    

    /**
     * @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(kalkulator.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(kalkulator.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(kalkulator.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(kalkulator.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 kalkulator().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify
    private javax.swing.JButton bagi;
    private javax.swing.JButton clear;
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton10;
    private javax.swing.JButton jButton18;
    private javax.swing.JButton jButton2;
    private javax.swing.JButton jButton3;
    private javax.swing.JButton jButton4;
    private javax.swing.JButton jButton5;
    private javax.swing.JButton jButton6;
    private javax.swing.JButton jButton7;
    private javax.swing.JButton jButton8;
    private javax.swing.JButton jButton9;
    private javax.swing.JButton kali;
    private javax.swing.JButton koma;
    private javax.swing.JButton kurang;
    private javax.swing.JTextField layar;
    private javax.swing.JButton samadengan;
    private javax.swing.JButton tambah;
    // End of variables declaration
}

Tugas Algoritma STMIK ERESHA Kelas Malam

untuk mencari keterangan karyawan yang rajin masuk kerja selama setahun dengan cara fungsi else if





berikut printscreen hasil Run File:










berikut Source Codenya:

package javaapplication1;

/**
 *
 * @author aries
 */
import java.util.Scanner;
public class tugas {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner nilai=new Scanner(System.in);
        System.out.println("masukan nilainya= ");
        int grade=nilai.nextInt();
       
        if(grade>=90){
            System.out.println("Grade A");
            System.out.println("Sangat Rajin");
        }else if(grade>=80){
            System.out.println("Grade B");
            System.out.println("Rajin");
        }else if(grade>=50){
            System.out.println("Grade C");
            System.out.println("Malas");
        }else{
            System.out.println("Grade D");
            System.out.println("Sangat Malas");
           
      
    }
       
       
    }
   
}