Java入门 - 详细的 Java 语法编程练习

详细的 Java 语法编程练习

A-  A+B Problem(SDUT 1000)

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);
      int a, b;
      a = sc.nextInt();
      b = sc.nextInt();
      System.out.println(a+b);
  } 
}

B-A+B for Input-Output Practice (I)（SDUT 1010）

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a, b;
    while (sc.hasNext()) {
      a = sc.nextInt();
      b = sc.nextInt();
      System.out.println(a + b);    
    }
  }
}

C-A+B for Input-Output Practice (II)（SDUT 1011）

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a, b, n;
    while (sc.hasNext()) {
      n = sc.nextInt();
      for (int i = 0; i < n; i++) {
        a = sc.nextInt();
        b = sc.nextInt();
        System.out.println(a + b);
      }
    }
  }
}

D-A+B for Input-Output Practice (III)（SDUT 1012）

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a, b;
    while (sc.hasNext()) {
      a = sc.nextInt();
      b = sc.nextInt();
      if (a == 0 && b == 0)
        break;
      System.out.println(a + b);
    }
  }
}

E-A+B for Input-Output Practice (IV)（SDUT 1013）

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
      Scanner reader = new Scanner(System.in);
      int n,x,sum;
      while(reader.hasNext()){
      n = reader.nextInt();
      if(n == 0)break;
      sum  = 0;
      for(int i = 0; i < n; i ++){
        x =reader.nextInt();
        sum  += x;
      }
      System.out.println(sum);
    }
  }
}

F-A+B for Input-Output Practice (V)（SDUT 1014）

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int m, sum, x, n;
    while (sc.hasNext()) {
      n = sc.nextInt();
      sum = 0;
      for (int k = 0; k < n; k++) {
        m = sc.nextInt();
        sum = 0;
        for (int i = 0; i < m; i++) {
          x = sc.nextInt();
          sum += x;
        }
        System.out.println(sum);
      }
    }
  }
}

G-A+B for Input-Output Practice (VI)（SDUT 1015）

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int sum, x, n;
    while (sc.hasNext()) {
      n = sc.nextInt();
      sum = 0;
      for (int i = 0; i < n; i++) {
        x = sc.nextInt();
        sum += x;
      }
      System.out.println(sum);
    }
  }
}

H-A+B for Input-Output Practice (VII)（SDUT  1016）

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a, b;
    while (sc.hasNext()) {
      a = sc.nextInt();
      b = sc.nextInt();
      System.out.println(a + b);
      System.out.println("");
    }
  }
}

I-A+B for Input-Output Practice（SDUT 1017）

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int m, sum, x, n;
    while (sc.hasNext()) {
      n = sc.nextInt();
      sum = 0;
      for (int k = 0; k < n; k++) {
        m = sc.nextInt();
        sum = 0;
        for (int i = 0; i < m; i++) {
          x = sc.nextInt();
          sum += x;
        }
        System.out.println(sum);
        System.out.println("");
      }
    }
  }
}

J-C语言实验——Hello World!（printf练习）（SDUT 1110）

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    System.out.println("Hello World!");
  }
}

K-C语言实验——格式化输出（常量练习）（SDUT 1111）

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    System.out.println("100\r\n" + 
        "A\r\n" + 
        "3.140000 ");
  }
}

L-C语言实验——图形输出（字符常量练习）（SDUT  1112）

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    System.out.println("#\r\n" + 
        "##\r\n" + 
        "###\r\n" + 
        "####\r\n" + 
        "#####\r\n" + 
        "######");
  }
}

M-C语言实验——单个字符输入和输出（顺序结构）（SDUT 1113）

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    char c;
    String s;
    Scanner sc = new Scanner(System.in);
    s = sc.next();
    c = s.charAt(0);
    System.out.println(c);
  }
}

N-C语言实验——计算A+B（顺序结构）（SDUT 1114）

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);
      int a, b;
      a = sc.nextInt();
      b = sc.nextInt();
      System.out.println(a+b);
  } 
}

O-C语言实验——交换两个整数的值（顺序结构）（SDUT 1115）

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a, b, c;
    a = sc.nextInt();
    b = sc.nextInt();
    c = a;
    a = b;
    b = c;
    System.out.println(a + " " + b);
  }
}

P-C语言实验——转换字母（顺序结构）（SDUT 1116）

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    String s;
    s = sc.nextLine();
    System.out.println(s.toUpperCase());
  }
}

Q-C语言实验——输出字符串（SDUT 1151）

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    System.out.println("This is a C program.");
  }
}

R-C语言实验——求两个整数之和（SDUT 1152）

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    System.out.println("sum is 579");
  }
}

S-C语言实验——打印图形（SDUT 1155）

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    System.out.println("******************************\r\n" + 
        "\r\n" + 
        "          Very good!\r\n" + 
        "\r\n" + 
        "******************************");
  }
}

T-C语言实验——用*号输出字母C的图案（SDUT 1156）

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    System.out.println("*****\r\n" + 
        "*\r\n" + 
        "*\r\n" + 
        "*\r\n" + 
        "*****");
  }
}

U-C语言实验——三个整数和、积与平均值（SDUT 1167）

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a,b,c;
    a = sc.nextInt(); b = sc.nextInt();c = sc.nextInt();
    double ave = (a + b + c) / 3.0;
    System.out.print(a+b+c+" "+ (a*b*c)+" ");
    System.out.printf("%.2f\n",ave);
  }
}

V-C语言实验——逆置正整数（SDUT 1189）

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n, a, b, c, m;
    n = sc.nextInt();
    a = n / 100;
    b = n / 10 % 10;
    c = n % 100 % 10;
    m = a + b * 10 + c * 100;
    System.out.println(m);
  }
}

W-C语言实验——买糖果（SDUT 1203）

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n, m, k;
    n = sc.nextInt();
    n = n * 10;
    m = n / 3;
    k = n % 3;
    System.out.println(m + " " + k);
  }
}

C语言实验——圆柱体计算（SDUT 1207）

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    final double P = 3.1415926;
    double r, h;
    double ans1, ans2, ans3, ans4;
    r = sc.nextDouble();
    h = sc.nextDouble();
    ans1 = 2 * P * r;
    ans2 = P * r * r;
    ans3 = 2 * P * r * h;
    ans4 = ans2 * h;
    System.out.printf("%.2f %.2f %.2f %.2f\n", ans1, ans2, ans3, ans4);
  }
}

C语言实验——温度转换（SDUT 1208）

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    double F, C;
    F = sc.nextDouble();
    C = 5 * (F - 32) / 9;
    System.out.printf("%.2f\n", C);
  }
}

火车（SDUT 2396）