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@shigemk2 shigemk2/Sample1.class
Last active Dec 27, 2015

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やさしいJava 6
class Sample1
{
public static void main(String[] args)
{
for(int i=1; i<=5; i++) {
System.out.println("繰り返しています");
}
System.out.println("繰り返しが終わりました");
}
}
import java.io.*;
class Sample10
{
public static void main(String[] args) throws IOException
{
System.out.println("成績を入力してください(1-5)");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String str = br.readLine();
int res = Integer.parseInt(str);
switch(res) {
case 1:
case 2:
System.out.println("もうすこしがんばりましょう");
break;
case 3:
case 4:
System.out.println("この調子でがんばりましょう");
break;
case 5:
System.out.println("大変優秀です");
break;
default:
System.out.println("1-5までの成績を入力せよ");
break;
}
}
}
import java.io.*;
class Sample11
{
public static void main(String[] args) throws IOException
{
System.out.println("何番目の処理を飛ばしますか(1-10)");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String str = br.readLine();
int res = Integer.parseInt(str);
for (int i=1; i<=10; i++) {
if (i == res)
continue;
System.out.println(i+"番目の処理です");
}
}
}
class Sample2
{
public static void main(String[] args)
{
for(int i=1; i<=5; i++) {
System.out.println(i+"番目の繰り返しです");
}
System.out.println("繰り返しが終わりました");
}
}
import java.io.*;
class Sample3
{
public static void main(String[] args) throws IOException
{
System.out.println("いくつ*を入力しますか");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String str = br.readLine();
int num = Integer.parseInt(str);
for(int i=1; i<=num; i++) {
System.out.println("*");
}
}
}
import java.io.*;
class Sample4
{
public static void main(String[] args) throws IOException
{
System.out.println("いくつまで合計を求めますか");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String str = br.readLine();
int num = Integer.parseInt(str);
int sum = 0;
for(int i=1; i<=num; i++) {
sum += i;
}
System.out.println("1から"+num+"までの合計は"+sum+"です");
}
}
class Sample5
{
public static void main(String[] args)
{
int i = 1;
while (i <= 5) {
System.out.println(i+"番目の繰り返しです");
i++;
}
System.out.println("繰り返しが終わりました");
}
}
class Sample6
{
public static void main(String[] args)
{
int i = 1;
do {
System.out.println(i+"番目の繰り返しです");
i++;
}while (i <= 5);
System.out.println("繰り返しが終わりました");
}
}
class Sample7
{
public static void main(String[] args)
{
for(int i=0;i<5;i++) {
for(int j=0;j<3;j++) {
System.out.println("iは"+i+":jは"+j);
}
}
}
}
class Sample8
{
public static void main(String[] args)
{
boolean bl = false;
for(int i=0;i<5;i++) {
for(int j=0;j<5;j++) {
if (bl == false) {
System.out.print("*");
bl = true;
}
else {
System.out.print("-");
bl = false;
}
}
System.out.print("\n");
}
}
}
import java.io.*;
class Sample9
{
public static void main(String[] args) throws IOException
{
System.out.println("何番目でループを中止しますか(1-10)");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String str = br.readLine();
int res = Integer.parseInt(str);
for(int i=1;i<=10;i++) {
System.out.println(i+"番目の処理です");
if (i == res) {
break;
}
}
}
}
class SampleP1 {
public static void main(String[] args)
{
System.out.println("1-10までの偶数を出力します");
for (int i=1; i<=10; i++) {
if ((i%2)==0) {
System.out.println(i);
}
}
}
}
import java.io.*;
class SampleP2 {
public static void main(String[] args) throws IOException
{
System.out.println("テストの点数を入力してください(0で終了)");
int sum = 0;
int res = 0;
do {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String str = br.readLine();
res = Integer.parseInt(str);
sum += res;
} while (res != 0);
System.out.println("テストの合計点は"+sum+"点です");
}
}
class SampleP3 {
public static void main(String[] args)
{
int res = 1;
for (int i=1; i<=9; i++) {
for (int j=1; j<=9; j++) {
System.out.print((res*j)+"\t");
}
res++;
System.out.print("\n");
}
}
}
class SampleP4 {
public static void main(String[] args)
{
for (int i=1; i<=5; i++) {
for (int j=1; j<=i; j++) {
System.out.print("*");
}
System.out.print("\n");
}
}
}
import java.io.*;
class SampleP5
{
public static void main(String[] args) throws IOException
{
System.out.println("2以上の素数を入力してください");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String str = br.readLine();
int res = Integer.parseInt(str);
boolean prime = true;
for(int i=2;i<res;i++) {
if (res == 2) {
prime = true;
break;
}
else if (res % i == 0) {
prime = false;
}
}
if (prime == true) {
System.out.println(res+"は素数です");
}
else {
System.out.println(res+"は素数ではありません");
}
}
}
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