JAVA入门

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（SDUT专题练习）

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）