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+定义一函数，用于求2个数中的较大数，并将其返回，这2个数字在主函数中由用户输入
+
+```java
+import java.util.Scanner;
+
+public class a {
+    public static void main(String[] args) {
+        Scanner s = new Scanner(System.in);
+        System.out.println("请输入第一个数：");
+        int a = s.nextInt();
+        System.out.println("请输入第二个数：");
+        int b = s.nextInt();
+        System.out.println("较大的数为："+max(a,b));
+    }
+    public static int max(int a,int b) {
+        return a>b?a:b;
+    }
+}
+```
+
+
+
+在主函数中从键盘接收X, Y , Z3个数，编写函数计算这3个数的立方和并返回计算结果：S=X3+Y3+Z3
+
+```java
+import java.util.Scanner;
+
+public class a {
+    public static void main(String[] args) {
+        Scanner s = new Scanner(System.in);
+        System.out.println("请输入第一个数：");
+        int x = s.nextInt();
+        System.out.println("请输入第二个数：");
+        int y = s.nextInt();
+        System.out.println("请输入第三个数：");
+        int z = s.nextInt();
+        System.out.println(h(x,y,z)+"="+sum(x)+"+"+sum(y)+"+"+sum(z));
+    }
+    public static int sum(int a) {
+        return a*a*a;
+    }
+
+    public static int h(int a , int b, int c) {
+        return a*a*a+b*b*b+c*c*c;
+    }
+}
+```
+